"You know so many documentaries now are very carefully scripted before you start, and then people are sort of put in chairs which are beautifully lit, and they tell their stories and you do that with another 10 people and you then construct a story from what they say. You do a sort of paper thing, and then you put some images in-between, and that's your film. And that's so not what I think is a good documentary. It can be so much more than that, it should be much more of an adventure and much more uncertain... like real things are."