In the first place, I'm pretty thorough about whom I choose. I instinctively look for the kind of actor who is going to be trusting. There are all kinds of insecure people out there called actors.

For me the journey of making a film is a journey of discovery as to what that film is. I mean what I do is what other artists do, painters, novelists, people that make music, poets, sculptors, you name it. It's about starting out and working with the material and discovering through making, working with the material the artifact.

I did sit in cinemas as a kid looking at English and American movies thinking, "Wouldn't it be great if the characters were like real people?" And the worst thing is films are constantly advertising themselves, drawing attention to their style of things. But actually I make films that I think are extremely sophisticated and cinematic. But you don't want the audience thinking about the bloody film. You want them to think about what's going on, and believe in it. Be flies on the wall, you know?

I try and create for the audience something that relates to real-life experience. When you're meeting somebody for the first time, all you have to go on are your preconceptions and your stereotypes and whatever else, but gradually as you get to know them, they change. They become more three-dimensional, and you start to see them in layers.

I make films because I am endlessly fascinated by people. I'm fascinated immediately to know about the lives that are going on around me. That is what drives me. And that is because everybody matters, everybody is there to be cared about, everybody is interesting and everybody is the potential central character in a story. Judging people is not acceptable.

If I'm ever working on a set and anyone talks about a master shot, I say there is no master shot. Before I even went to film school, I learned about movies by being in a British feature film, where everything was shot master shot, mid-shot, close-up. But I reject the idea of a master shot. You don't shoot everything mechanically; you find imaginative ways that serve the action.

My work requires acting at its most committed - it demands actors of enormous resilience, but also intelligence and wit. It doesn't work for narcissistic or selfish actors.