If you have to be persuaded about something, you shouldn't do it.

I've never done a film before where every single person in the audience knows the ending. I mean suspense, twists are almost impossible these days. People are blogging your endings from their cinema seats.

Your first film is always your best film, in a way. There's something about your first film that you never ever get back to, but you should always try. It's that slight sense of not knowing what you're doing, because the technical skills you learn - especially if you have a film that works, that has some kind of success - are beguiling. The temptation is to use them again, and they're not necessarily good storytelling techniques.

Everybody expects you to be qualified to talk about your films, but in a way, you're the least qualified person to talk about them. When you're finished, you don't watch them at all.

To create the reality of space with this sense of suspension: nothing's happening, it's endless; we're traveling at 28,000 kilometers an hour but nothing's happening. Nothing! And you have to do that! There are all these rules you have to follow, I've never known anything like it.

Brian Cox is the nicest guy, but he's so arrogant.

I have this theory that your first film is always your best film in some way. I always try to get back to that moment when you're not relying on things you've done before.