I've learned, having been on a lot of sets, the good news is that by definition you are surrounded by experts. They get fired if they're not - unlike in the theatre!

I do take my work seriously and the way to do that is not to take yourself too seriously.

I do feel more myself in America. I can regress there, and they have roller-coaster parks.

I get stage fright and gremlins in my head saying: 'You're going to forget your lines'.

Film has to be reflecting the world that we live in, and that's all you want to be a part of. Actors inhabit the same planet as everyone else. It's a weird thing that happens when you're an actor because people hold you up because you somehow embody in parts groups of people or people's hopes or something.

I never talk about 'Harry Potter' because I think that would rob children of something that's private to them. I think too many things get explained, so I hate talking about it.

The directors you trust the most are the ones, when you ask them a question, they've got the guts to say, 'I don't know.'