Their every instinct - and I have to say this is without exception - is to iron out the bumps, and It's always the bumps that are the most interesting stuff.

Always, with any movie that I do, I have a book of ideas that I've heard, or seen, or whatever, and I always try to incorporate it in the film.

The challenge, really, on any new film is to try to avoid that and achieve a few moments that aren't cliche.

I wanted to make a movie about the arbitrary nature of love.

What I think is interesting is that the more you do, you have to invent a book of rules of what you can do and what you can't do. And the very real danger is that if your book of rules becomes a book of cliches.

I've always been interested in films where you can identify with the actors. Where you can be in their shoes and therefore be more involved if they're people that you recognize.

I was speaking to Ridley Scott the other day and he makes a film every 18 months. He's amazing really.