Editing Proof of concept (section)

=== Filmmaking===
''[[Sky Captain and the World of Tomorrow]]'', ''[[300 (film)|300]]'', and ''[[Sin City (film)|Sin City]]'' were all shot in front of a [[greenscreen]] with almost all backgrounds and [[Theatrical property|props]] [[computer-generated imagery|computer-generated]]. All three used proof-of-concept short films. In the case of ''Sin City'', the short film became the prologue of the final film.{{Citation needed|date=September 2023}}

[[Pixar Animation Studios|Pixar]] sometimes creates short animated films that use a difficult or untested technique. Their short film ''[[Geri's Game]]'' used techniques for animation of cloth and of human facial expressions later used in ''[[Toy Story 2]]''. Similarly, [[Pixar]] created several short films as proofs of concept for new techniques for water motion, sea anemone tentacles, and a slowly appearing whale in preparation for the production of ''[[Finding Nemo]]''.{{Citation needed|date=September 2023}}