I have been interested in dreams, really since I was a kid. I have always been fascinated by the idea that your mind, when you are asleep, can create a world in a dream and you are perceiving it as though it really existed.

People want to see something that shows them you can do what you say. That's the trick.

For me, as a film goer, I like nothing more than to sit in the cinema, have the lights go down and not know what I'm about to see or unfold on-screen. Every time we go to make a film, we do everything we can to try to systematise things so we're able to make the film in private, so that when it's finished it's up to the audience to make of it what they will.

The most stressful and difficult part of steering a large movie is that you are taking on the responsibility of communicating with a very wide audience. You can't ever hide behind the notion of, 'Okay, they just don't get it,' or, 'Certain people just don't get it.' You have to be mindful of the size of your audience, and you have to communicate in a way that lets them in.

It's difficult to keep anything fresh for an audience these days. With technology being what it is people seem to know everything there is to know about a film before you've even made it.

Films are subjective - what you like, what you don't like. But the thing for me that is absolutely unifying is the idea that every time I go to the cinema and pay my money and sit down and watch a film go up on-screen, I want to feel that the people who made that film think it's the best movie in the world, that they poured everything into it and they really love it. Whether or not I agree with what they've done, I want that effort there - I want that sincerity. And when you don't feel it, that's the only time I feel like I'm wasting my time at the movies.

I like films that don't have that unonimity of a response; that don't have consensus in the audience. What it is essentially for me is that if you go back and watch the film a second time, do you feel that you've been played fair with? Are all the clues in place? Indeed, sometimes these things are even overstated. Specifically, for that reason.