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== Production == === Origins === The inspiration for ''Tron'' occurred in 1976 when Steven Lisberger, then an animator of drawings with his own studio, looked at a sample reel from a computer firm called [[Mathematical Applications Group, Inc.|MAGI]] and saw ''[[Pong]]'' for the first time.<ref name="Culhane">{{cite news|last=Culhane |first=John |title=Special Effects are Revolutionizing Film |work=[[New York Times]] |date=July 4, 1982 |url=https://query.nytimes.com/gst/fullpage.html?res=9F00E3DB123BF937A35754C0A964948260&sec=technology&spon=&pagewanted=all |access-date=January 28, 2009 |archive-url=https://archive.today/20120915/http://query.nytimes.com/gst/fullpage.html?res=9F00E3DB123BF937A35754C0A964948260&sec=technology&spon=&pagewanted=all |archive-date=September 15, 2012 |url-status=dead}}</ref> He was immediately fascinated by video games and wanted to do a film incorporating them. According to Lisberger, "I realized that there were these techniques that would be very suitable for bringing video games and computer visuals to the screen. And that was the moment that the whole concept flashed across my mind".<ref name="Patterson, Richard">{{cite news | last = Patterson | first = Richard | title = The Making of ''Tron'' | work = [[American Cinematographer]] | date = August 1982 }}</ref> The film's concept of entering a parallel game world was also inspired by the classic tale ''[[Alice in Wonderland]]''.<ref name="Tron">{{cite magazine |title=The Making of Tron |magazine=Video Games Player |date=September 1982 |volume=1 |issue=1 |publisher=Carnegie Publications |pages=50β5 |url=https://archive.org/details/Video_Games_Player_Vol_1_No_1_1982-09_Carnegie_Publications_US/page/n49/mode/2up}}</ref> Lisberger had already created an early version of the character 'Tron' for a 30 second long animation which was used to promote both Lisberger Studios and a series of various rock radio stations. This backlit [[cel animation]] depicted Tron as a character who glowed yellow; the same shade that Lisberger had originally intended for all the heroic characters developed for the feature-length ''Tron''. This was later changed to blue for the finished film (see [[#Production|Pre-production]] below). The prototype Tron was bearded and resembled the [[Cylon (1978)|Cylon]] Centurions from the 1978 TV series ''[[Battlestar Galactica (1978 TV series)|Battlestar Galactica]]''. Also, Tron was armed with two "exploding discs", as Lisberger described them on the 2-Disc DVD edition ([[List of Tron characters#Rinzler/Tron|see Rinzler]]). Lisberger elaborates: "Everybody was doing backlit animation in the 70s, you know. It was that disco look. And we thought, what if we had this character that was a neon line, and that was our Tron warrior β Tron for electronic. And what happened was, I saw ''Pong'', and I said, well, that's the arena for him. And at the same time I was interested in the early phases of computer generated animation, which I got into at MIT in Boston, and when I got into that I met a bunch of programmers who were into all that. And they really inspired me, by how much they believed in this new realm."<ref>{{cite web|url=https://www.denofgeek.com/Tron/687709/interview_justin_springer_and_steven_lisberger_coproducers_of_tron_legacy.html |title=Interview: Justin Springer and Steven Lisberger, co-producers of Tron: Legacy |archive-url=https://archive.today/20120915/http://www.denofgeek.com/Tron/687709/interview_justin_springer_and_steven_lisberger_coproducers_of_tron_legacy.html |archive-date=September 15, 2012 |url-status=dead}}</ref> He was frustrated by the clique-like nature of computers and video games and wanted to create a film that would open this world up to everyone. Lisberger and his business partner [[Donald Kushner]] moved to the West Coast in 1977 and set up an animation studio to develop ''Tron''.<ref name="Patterson, Richard" /> They borrowed against the anticipated profits of their 90-minute animated television special ''[[Animalympics]]'' to develop storyboards for ''Tron'' with the notion of making an animated film.<ref name="Culhane" /> But after ''[[Variety (magazine)|Variety]]'' mentioned the project briefly during its early phase, it caught the attention of computer scientist [[Alan Kay]]. He contacted Lisberger and convinced him to use him as an adviser on the movie, then persuaded him to use real CGI instead of just hand-animation.<ref>[https://books.google.com/books?id=WOwyRnZ1oxoC&dq=Tron+hand-animated+back-lit+Variety+Alan+Kay+Xerox+PARC+Lisberger&pg=PA160 Moving Innovation: A History of Computer Animation]</ref> [[Bonnie MacBird]] wrote the first drafts of Tron with extensive input from Lisberger,<ref name="mm">{{cite web |url=https://mediamikes.com/2011/09/interview-with-trons-bonnie-macbird/ |title=Bonnie MacBird talks about co-writing 1982's "TRON" |first= Mike |last=Gencarelli |date=September 27, 2011 |website=Media Mikes |access-date=September 18, 2020}}</ref> basing the original personality of Alan on Alan Kay.<ref name="nf">{{cite web |date=October 30, 2012 |title=NTF Exclusive β Tron 30th Anniversary Screening Review! |url=https://nukethefridge.com/ntf-exclusive-tron-30th-anniversary-screening-review/ |access-date=September 18, 2020 |website=Nuke the Fridge |archive-date=September 18, 2020 |archive-url=https://web.archive.org/web/20200918215655/http://nukethefridge.com/ntf-exclusive-tron-30th-anniversary-screening-review/ |url-status=dead }}</ref> As a result of working together, Kay and MacBird became close and later married.<ref name="mm"/> She also created Tron as a character (rather than a visual demo) and Flynn.<ref name="mm"/> Originally, MacBird envisioned Flynn more comedically, suggesting the then 30-year-old [[Robin Williams]] for the role.<ref name="nf"/> Besides many story changes after the script went to Disney, including giving it "a more serious tone with quasi religious overtones",<ref name="mm"/> and removing most of the scientific elements,<ref name="mm"/> none of her dialogue remains in the final film,<ref name="ts">{{cite web |date=2002 |title=March 2002 Q&A; with Bonnie MacBird |url=http://www.tron-sector.com/Articles/article.asp?ID=13 |url-status=dead |archive-url=https://web.archive.org/web/20030109182549/http://www.tron-sector.com/Articles/article.asp?ID=13 |archive-date=January 9, 2003 |access-date=September 18, 2020 |website=Tron Sector}}</ref> and there was a "rather bitter credits dispute."<ref name="ts"/> The film was eventually conceived as an animated film bracketed with live-action sequences.<ref name="Patterson, Richard" /> The rest involved a combination of computer-generated visuals and back-lit animation. Lisberger planned to finance the movie independently by approaching several computer companies but had little success. However, one company, [[Information International Inc.]], was receptive.<ref name="Patterson, Richard" /> He met with Richard Taylor, a representative, and they began talking about using live-action photography with back-lit animation in such a way that it could be integrated with computer graphics. At this point, there was a script and the film was entirely [[storyboard]]ed, with some computer-animation tests completed.<ref name="Patterson, Richard" /> He had spent approximately $300,000 developing ''Tron'' and had also secured $4β5 million in private backing before reaching a standstill. Lisberger and Kushner took their storyboards and samples of computer-generated films to [[Warner Bros.]], [[Metro-Goldwyn-Mayer]], and [[Columbia Pictures]] β all of which turned them down.<ref name="Culhane" /> In 1980, they decided to take the idea to [[Walt Disney Studios (division)|Walt Disney Productions]], which was interested in producing more daring productions at the time.<ref name="Patterson, Richard" /> Tom Wilhite, Disney's vice president for creative development, watched Lisberger's test footage and convinced [[Ron W. Miller|Ron Miller]] to give the movie a chance.<ref>[https://www.washingtonpost.com/archive/lifestyle/1981/04/19/the-disney-draw/e5d46970-9d52-4597-a427-fa8f2467e839/ The Disney Draw β The Washington Post]</ref><ref>[http://jimhillmedia.com/guest_writers1/b/leo_n_holzer/archive/2010/12/15/former-disney-ceo-ron-miller-recalls-his-own-quot-tron-quot-legacy.aspx Former Disney CEO Ron Miller recalls his own "TRON" legacy]</ref> However, Disney executives were uncertain about giving $10β12 million to a first-time producer and director using techniques which, in most cases, had never been attempted. The studio agreed to finance a test reel which involved a [[flying disc]] champion throwing a rough prototype of the discs used in the film.<ref name="Patterson, Richard" /> It was a chance to mix live-action footage with back-lit animation and computer-generated visuals. It impressed the executives at Disney and they agreed to back the film. MacBird and Lisberger's script was subsequently re-written and re-storyboarded with the studio's input.<ref name="Patterson, Richard" /> At the time, Disney rarely hired outsiders to make films for them, and Kushner found that he and his group were given a chilly reception because they "tackled the nerve center β [[Walt Disney Animation Studios|the animation department]]. They saw us as the germ from outside. We tried to enlist several Disney animators, but none came. Disney is a closed group."<ref name="Ansen2">{{cite news | last = Ansen | first = David | title = When You Wish Upon a ''Tron'' | work = [[Newsweek]] | date = July 5, 1982 }}</ref> As a result, they hired [[Wang Film Productions]] for the animation. === Production === Because of the many special effects, Disney decided in 1981 to film ''Tron'' completely in 65-mm [[Super Panavision]] (except for the computer-generated layers, which were shot in [[VistaVision]]; and both [[Anamorphic format|anamorphic 35mm]] and [[Super 35]], which were used for some scenes in the "real" world, and subsequently "blown up" to 65 mm).<ref>{{cite web|url=http://www.in70mm.com/newsletter/2000/60/tron/answer/index.htm |title=In70mm.com |archive-url=https://archive.today/20120915/http://www.in70mm.com/newsletter/2000/60/tron/answer/index.htm |archive-date=September 15, 2012 |url-status=dead}}</ref> Three designers were brought in to create the look of the computer world.<ref name="Patterson, Richard" /> French comic book artist [[Jean Giraud]] (also known as Moebius) was the main set and costume designer for the film. Most of the vehicle designs (including Sark's aircraft carrier, the light cycles, the tank, and the solar sailer) were created by industrial designer [[Syd Mead]]. [[Peter Lloyd (illustrator)|Peter Lloyd]], a high-tech commercial artist, designed the environments.<ref name="Patterson, Richard" /> Nevertheless, these jobs often overlapped, leaving Giraud working on the solar sailer and Mead designing terrain, sets and the film's logo. The original 'Program' character design was inspired by Lisberger Studios' logo of a glowing bodybuilder hurling two [[Flying disc|discs]].<ref name="Patterson, Richard" /> To create the computer animation sequences of ''Tron'', Disney turned to the four leading computer graphics firms of the day: [[Information International, Inc.]] of [[Culver City, California]], who owned the [[Foonly#The Foonly F1|Super Foonly F-1]] (the fastest [[PDP-10]] ever made and the only one of its kind); [[Mathematical Applications Group, Inc.|MAGI]] of [[Elmsford, New York]]; [[Robert Abel and Associates]] of California; and [[Digital Effects]] of New York City.<ref name="Patterson, Richard" /> [[Bill Kovacs]] worked on the film while working for Robert Abel before going on to found [[Wavefront Technologies]]. The work was not a collaboration, resulting in very different styles used by the firms. ''Tron'' was one of the first films to make extensive use of any form of [[computer animation]], and it is celebrated as a milestone in the industry, although only fifteen to twenty minutes of such animation were used (mostly scenes that show digital "terrain" or patterns, or include vehicles such as light-cycles, tanks and ships).<ref name="DVD">Interview with [[Harrison Ellenshaw]], supplemental material on ''Tron'' DVD</ref> Because the technology to combine computer animation and live action did not exist at the time, these sequences were interspersed with the filmed characters. One of the computers used had only 2 MB of memory and no more than 330 MB of storage. This put a limit on detail of background; and at a certain distance, they had a procedure of mixing in black to fade things out, a process called "depth cueing". The film's Computer Effects Supervisor Richard Taylor told them "When in doubt, black it out!", which became their motto.<ref>{{cite web|url=http://digitalcontentproducer.com/dcc/revfeat/video_tron/ |title=The influence of Disney's Tron in filmmaking Tron and CG moviemaking |archive-url=https://archive.today/20120707/http://digitalcontentproducer.com/dcc/revfeat/video_tron/ |archive-date=July 7, 2012 |url-status=dead}}</ref> Originally the film was meant to use white backgrounds like in ''[[THX 1138]]'' inside the Grid, but it would require such huge amounts of lights that it was decided to use black backgrounds instead.<ref>{{Cite web |url=http://www.tested.com/art/movies/520562-putting-original-trons-special-effects-together/ |title=Putting Tron's Special Effects Together β Tested |access-date=May 12, 2018 |archive-date=May 12, 2018 |archive-url=https://web.archive.org/web/20180512181521/http://www.tested.com/art/movies/520562-putting-original-trons-special-effects-together/ |url-status=dead }}</ref> The computers used at the time could not perform animation, so the frames had to be produced one by one. In some of the more complex sequences, like the Solar Sailer moving through metal canyons, each frame could take up to six hours to produce. There was no way to digitally [[Film-out|print them on film]], either; rather, a motion picture camera was placed in front of a computer screen to capture each individual frame.<ref>[https://variety.com/2017/film/news/tron-jeff-bridges-cgi-1982-disney-anniversary-1202486941/ TRON, Jeff Bridges & CGI: The Classic 80's Film Anniversary β Variety]</ref><ref>[http://www.cgw.com/Press-Center/Web-Exclusives/2011/Original-TRON.aspx Original TRON | Computer Graphics World]</ref><ref>[https://www.tcm.com/tcmdb/title/93956/tron#articles-reviews Tron (1982) β Articles β TCM.com]</ref> Most of the scenes, backgrounds, and visual effects in the film were created using more traditional techniques and a unique process known as "backlit animation".<ref name="Patterson, Richard" /> In this process, live-action scenes inside the computer world were filmed in [[black-and-white]] on an entirely black set, placed in an enlarger for blow-ups and transferred to [[large format]] Kodalith high-contrast film. These negatives were then used to make Kodalith sheets with a reverse (positive) image. Clear cels were laid over each sheet and all portions of the figure except the areas that were exposed for the later camera passes were manually blacked out. Next the Kodalith sheets and cel overlays were placed over a light box while a VistaVision camera mounted above it made separate passes and different color filters. A typical shot normally required 12 passes, but some sequences, like the interior of the electronic tank, could need as many as 50 passes. About 300 matte paintings were made for the film, each photographed onto a large piece of [[Ektachrome]] film before colors were added by gelatin filters in a similar procedure as in the Kodaliths. The mattes, [[rotoscoping|rotoscopic]] and CGI were then combined and composed together to give them a "technological" appearance.<ref name="Ansen2" /><ref>[https://web.archive.org/web/20180522180956/https://computerarchive.org/files/computer/magazines/electronic%20games/Electronic_Games_Issue_08_Vol_01_08_1982_Oct.pdf The Magnificent Look of ... TRON; Electronic Games, 1982-10 β page 56]</ref> With multiple layers of high-contrast, large format positives and negatives, this process required truckloads of [[sheet film]] and a workload even greater than that of a conventional cel-animated feature. The Kodalith was specially produced as large sheets by Kodak for the film and came in numbered boxes so that each batch of the film could be used in order of manufacture for a consistent image. However, this was not understood by the filmmakers and, as a result, glowing outlines and circuit traces occasionally flicker as the film speed varied between batches. After the reason was discovered, this was no longer a problem as the batches were used in order and "zinger" sounds were used during the flickering parts to represent the computer world malfunctioning as Lisberger described it.<ref>The Making of Tron (DVD Feature)</ref> Lisberger later had these flickers and sounds digitally corrected for the 2011 restored Blu-ray release as they were not included in his original vision of the film. Due to its difficulty and cost, this process of back-lit animation was not repeated for another feature film. Sound design and creation for the film was assigned to Frank Serafine, who was responsible for the sound design on ''[[Star Trek: The Motion Picture#Sound effects|Star Trek: The Motion Picture]]'' in 1979. βThere were over 750 units [separate tape segments] in the picture," said Serafine.<ref>{{cite news |last1=Meyer |first1=E. Brad |title=Reeling in the LA sound effects: Behind TRON's soundtrack |url=https://archive.org/details/sim_boston-phoenix_1982-08-17_11_33/page/11/mode/1up |access-date=September 15, 2024 |work=The Boston Phoenix |date=August 17, 1982}}</ref> He created all the sound effects in the movie exclusively by synthesizers and similar electronic devices.<ref>[https://cnmsarchive.wordpress.com/2023/03/25/electronic-music-by-carlos/ ElecTRONic Music by Carlos - Cinefantastique]</ref> At one point in the film, a small entity called "Bit" advises Flynn with only the words "yes" and "no" created by a [[Votrax]] speech synthesizer. ''[[BYTE]]'' wrote: "Although this film is very much the personal expression of Steven Lisberger's vision, nevertheless [it] has certainly been a group effort".<ref name="sorensen198211">{{cite news | url=https://archive.org/stream/byte-magazine-1982-11/1982_11_BYTE_07-11_Graphics#page/n49/mode/2up | title=Tronic Imagery | work=BYTE | date=November 1982 | access-date=October 19, 2013 | author=Sorensen, Peter | pages=48}}</ref> More than 569 people were involved in the post-production work, including 200 inkers and hand-painters, 85 of them from Taiwan's [[Cuckoo's Nest Studio]]. Unusual for an English-language production, in the end credits the Taiwanese personnel were listed with their names written in [[Chinese characters]].<ref name="Ansen2" /> This film features parts of the [[Lawrence Livermore National Laboratory]]; the multi-story ENCOM laser bay was the target area for the [[Shiva laser|SHIVA]] solid-state multi-beamed laser. Also, the stairway that Alan, Lora, and Flynn use to reach Alan's office is the stairway in Building 451 near the entrance to the main machine room. The cubicle scenes were shot in another room of the lab. At the time, ''Tron'' was the only film to have scenes filmed inside this lab.<ref>{{cite web|url=https://lasers.llnl.gov/about/people/people_of_nif/rod_saunders.php |title=The People of NIF: Rod Saunders: Each Day is an Adventure |archive-url=https://archive.today/20120805/https://lasers.llnl.gov/about/people/people_of_nif/rod_saunders.php |archive-date=August 5, 2012 |url-status=dead}}</ref> The original script called for "good" programs to be colored yellow and "evil" programs (those loyal to Sark and the MCP) to be colored blue. Partway into production, this coloring scheme was changed to blue for good and red for evil, but some scenes were produced using the original coloring scheme: Clu, who drives a tank, has yellow circuit lines, and all of Sark's tank commanders are blue (but appear green in some presentations). Also, the light-cycle sequence shows the heroes driving yellow (Flynn), orange (Tron), and red (Ram) cycles, while Sark's troops drive blue cycles; similarly, Clu's tank is red, while tanks driven by crews loyal to Sark are blue. Because of all the personal information about citizens which exist inside computer networks, such as social security number and driver's license, the idea was that each real world person has a digital counterpart inside the Grid based on information about them, which is why it was decided to use some of the same actors in both worlds.<ref>[https://www.youtube.com/watch?v=of-IF7R-fgo&t=16s Making of Tron]</ref> Budgeting the production was difficult by reason of breaking new ground in response to additional challenges, including an impending [[Directors Guild of America]] strike and a fixed release date.<ref name="Patterson, Richard" /> Disney predicted at least $400 million in domestic sales of merchandise, including an arcade game by [[Midway Games|Bally Midway]] and three [[Mattel]] [[Intellivision]] home video games.<ref name="Ansen2" /> The producers also added [[Easter egg (media)|Easter eggs]]: during the scene where Tron and Ram escape from the [[Light Cycle]] arena into the system, [[Pac-Man]] can be seen behind Sark (with the corresponding sounds from the ''Pac-Man'' arcade game being heard in the background), while a "[[Hidden Mickey]]" outline (located at time 01:12:29 on the re-release Blu-ray) can be seen below the solar sailer during the protagonists' journey.<!-- The whole paragraph --> The film set also included the arcade games ''[[Space Invaders]]'' (1978), ''[[Asteroids (video game)|Asteroids]]'' (1979) and ''[[Pac-Man]]'' (1980).<ref>{{cite news |last1=Gaudiosi |first1=John |title='Tron: Legacy' Director, Disney Hoping to Extend Film Franchise Via Video Games |url=https://www.hollywoodreporter.com/news/disneys-tron-remains-pinnacle-hollywood-61415 |access-date=20 April 2021 |work=[[The Hollywood Reporter]] |date=17 December 2010}}</ref> ''Tron'' was originally meant to be released during the Christmas season of 1982, but when chairman of the Disney board [[Card Walker]] found out the release date of [[Don Bluth]]'s film ''[[The Secret of NIMH]]'' was in early July, he rushed it into a summer release to be able to compete with Bluth, and it ended up competing with films like ''[[E.T. the Extra-Terrestrial]]'', ''[[Star Trek II: The Wrath of Khan]]'', ''[[Blade Runner]]'' and ''[[Poltergeist (1982 film)|Poltergeist]]''.<ref>[http://jimhillmedia.com/editor_in_chief1/b/jim_hill/archive/2012/01/04/new-william-kallay-book-reveals-quot-how-tron-changed-visual-effects-and-disney-forever.aspx New William Kallay book reveals "How Tron Changed Visual Effects and Disney Forever"]</ref> === Music === {{Main|Tron (soundtrack){{!}}''Tron'' (soundtrack)}} The soundtrack for ''Tron'' was written by pioneer electronic musician [[Wendy Carlos]], who is best known for her album ''[[Switched-On Bach]]'' and for the soundtracks to many films, including the [[Stanley Kubrick]]-directed films ''[[A Clockwork Orange (film)|A Clockwork Orange]]'' and ''[[The Shining (film)|The Shining]]''. The music, which was the first collaboration between Carlos and her partner Annemarie Franklin,<ref name="KeyboardMag">{{cite journal|last=Moog|first=Robert|title=The Soundtrack of TRON|journal=Keyboard Magazine|date=November 1982|pages=53β57|access-date=July 16, 2009|url=http://www.wendycarlos.com/other/PDF-Files/KbdOnTRON*.pdf|url-status=dead|archive-url=https://web.archive.org/web/20101202105815/http://wendycarlos.com/other/PDF-Files/KbdOnTRON*.pdf|archive-date=December 2, 2010}}</ref> featured a mix of an analog [[Moog synthesizer]] and [[Crumar]]'s GDS digital synthesizer (complex [[Additive synthesis|additive]] and [[FM synthesis|phase modulation]] [[sound synthesis|synthesis]]), along with non-electronic pieces performed by the [[London Philharmonic Orchestra]] (hired at the insistence of Disney, which was concerned that Carlos might not be able to complete her score on time). Two additional musical tracks ("1990's Theme" and "Only Solutions") were provided by the American band [[Journey (band)|Journey]] after British band [[Supertramp]] pulled out of the project. An album featuring dialogue, music and sound effects from the film was also released on LP by Disneyland Records in 1982.
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