With some films you can sort of slide in, get a haircut and you're in.

There's always a level where you think you can improve and do better. Certainly at the beginning... I did four years of straight theater without ever having a part in a movie, and I remember being far more nervous on a film set than I was on the stage. It took a while for that to become less so.

I really feel actors should try and do as much diverse work as possible to try and keep it interesting.

At the moment I'm doing this space movie, so I'm obsessed with physics and space travel. I know three months down the line it's gone. Then I'll be able to superficially say stuff about space.

I'd love to work in America, some of my favourite films come from America.

I was obsessed with Batman as a kid. I did the film in part just to be near the Batmobile. But I also think [director] Christopher Nolan made a very fine, intelligent film.

I feel very lucky to be making good work still. The confidence of youth, or that sort of competitiveness you get when you're 22 or 23, the impatience - that's probably been tempered. Hopefully I'm slightly better company.