I was watching Monster's Ball, which is a fabulous movie. It's just a little gem: beautifully shot, and shot in a way I never would have done. It made me feel very old, really, because it wasn't eccentric for its own sake, it was just very original.

It's the sort of subject that always interests me: jealousy and the language of suspicion and guilt. I think it interests people.

Obviously, in dealing with a relationship, sexuality has to be involved, and jealousy and emotions like that. And I don't know, I've always been intrigued by those emotions.

If you are prepared to make a fool of yourself for them then you usually get that back. I think that there are points where you become so close to an actor, you know them so well, almost as well or better than their spouse. You have to know them, warts and all.

The danger is that if you have a bunch of ideas that you forget to use.

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.