If I hadn't been a part of [Harry Potter] I would have been deeply upset.

The most difficult thing about painting is the self-discipline. When I finish a job, I give myself a few days, but then I have to discipline myself quite fiercely if I want to do some painting that's worthwhile. Otherwise, you're just doodling. It's much easier when you're just told what you have to do.

If it's a low-brow bawdy comedy, it's got to stand the chance of succeeding as such. If it's an intellectual piece, a drama, and so forth. And of course, once you've determined the level of the piece, do it the best you know how. And then don't make concessions. To audiences, or to pursestrings, or whatever.

I think an actor is very like a sportsman. You have periods where you're in terrific form. Everything you touch seems to work, and come right. And other times, when you're working really hard, it's okay, but it isn't scintillating.

I have lots of favourite memories but I can't say that I have a favourite film.

I think I'd rather do [acting] in the real place. It requires different things, working with green screen, but its an imaginative exercise anyway, the whole business of acting, so it just gives you a bit more to feed the imagination. Unless it's really silly, just two of you stuck in a space with nothing but green screen that's got to be pretty difficult.

The truth is rarely true and never simple.