When a documentary goes in to the cutting room, everything is up for grabs. With no script to follow, who knows where the film starts or ends. Sitting watching the rushes, the editor has to work out not just what the story is but how you tell that story. In this session three of the leading documentary editors in the country talk about their craft – how they find the narrative in a film and then cut it to look as if there was never another way to make the film.