Editing Edge of Darkness (section)

===Production===
By 1983, Jonathan Powell was keen to put the serial into production and offered the scripts to producer Michael Wearing who was immediately impressed by the scenes in the first episode, "Compassionate Leave", depicting Craven's reaction to Emma's death, describing them as "the most sustained evocation of individual grief in bereavement that I can remember".<ref>Pixley, ''Get It While It's Hot'', p. 54.</ref> The budget was set at £2 million, of which £400,000 came from an American co-producer, Lionheart Television International.<ref name="Lavender_104" /> Director Martin Campbell came on board shortly afterwards and soon clashed with Troy Kennedy Martin, demanding rewrites, in particular to the notion that Craven had known about Emma's involvement with Gaia right from the start; this was removed at Campbell's behest.<ref>Pixley, ''Get It While It's Hot'', p. 54 - 55.</ref> Further clashes over the script occurred between Kennedy Martin and star Bob Peck over the conclusion in which his character would turn into a tree; Peck recalled that "it didn't seem to be working in script terms, it seemed as though we wouldn't be able to make it work for the audience",<ref name="Magnox" /> a view echoed by Michael Wearing who felt that it was "likely not to come off as an effect".<ref name="Magnox" /> Kennedy Martin capitulated, introducing instead the concept of the black flowers seen in the finished production. However, some elements of Kennedy Martin's original vision persist in the final script: for example, in episode three, "Burden of Proof", the ghost of Emma urges Craven, as he undergoes a breakdown, to be strong, like a tree.<ref>Lavender, ''Edge of Darkness (Troy Kennedy Martin)'', p. 113.</ref>

Shooting on ''Edge of Darkness'' began on 9 July 1984<ref name="PixleyA_56" /> and ran for five months until 5 December 1984.<ref name="PixleyB_50">Pixley, ''Into The Shadows'', p. 50.</ref> Location filming took place in London (including the [[Barbican Arts Centre]], [[BBC Television Centre]] and the [[Hilton Hotels & Resorts|Hilton International]] hotel in [[Kensington]]), Yorkshire (including the headquarters of the [[West Yorkshire Police]] in [[Bradford]], the [[Middleton Railway]], the headquarters of [[Systime Computers]] (now the Arlington Business Centre) in [[Leeds]] where Craven hacks into the MI5 computer and at Westwood Cottage, [[Ilkley]] (for Craven's home), Scotland (including the Gleneagles Hotel, where Jedburgh addresses the NATO conference and also where President Reagan's [[Reykjavík Summit|Reykjavík policy]] was formulated<ref name="Inglis_55">Inglis, ''Citizenship and the Media'', p. 55.</ref>) and Wales (including [[Clogau Gold Mine]] and Manod, [[Blaenau Ffestiniog]], at [[Graig Ddu quarry]], doubling as Northmoor with the hot cell a set constructed at a factory in [[Penygroes, Gwynedd|Penygroes]]).<ref>Pixley, ''Into The Shadows'', ''passim''</ref> The hospital scenes were filmed at [[Northwick Park Hospital]] accident unit.<ref>''Liverpool Daily Post'' Wednesday 30 October 1985</ref>

Throughout the entire shoot, the production continued to be known as ''Magnox''; the title ''Dark Forces'' was briefly considered before the serial was renamed ''Edge of Darkness'' in April 1985.<ref name="PixleyB_50" /> As the shoot progressed it became apparent to the cast and crew that they had a potential hit on their hands; Bob Peck recalled, "I think we knew when we were making it that it was a good piece of work"<ref>{{cite video | title = Bob Peck interviewed on Breakfast Time | medium = Edge of Darkness DVD Special Feature | publisher = [[BBC Worldwide]] | location = London }}</ref> while Kennedy Martin told reporters "I haven't had this feeling about something for 20 years. It's wonderful, after all this time, to get something that actually works".<ref name="PixleyB_50" />