James Marsh

I wanted to be a police detective. In my work, particularly in documentaries, I am obsessed with finding things out, seeking ever-new facts and perspectives - each project can involve years of research.

For a film to be viable, it has to survive this process of scrutiny. I think most filmmakers have obsessive-compulsive tendencies and would be completely unemployable in any other job - so it's great to be able to channel your psychological anomalies into something productive and creative.

What I look for when I see a piece of art for the first time is some kind of emotional, intellectual experience, that's a combination of both of those things and is informed by my knowledge and something new that I see the artist doing.