Acting is an imaginative leap, really, isn't it? And imaginations prosper in different circumstances. And it's being able - I can't tell you how one does, but one tries to read those circumstances correctly.

On the other hand, you get other films that are spread over a much longer period of time and it's entirely exhausting. But there's always light at the end of the tunnel with a film.

With [Fred] Zinnemann I did A Man For All Seasons. He was my screen godfather. I'm happy to say he was.

I think you can fan the flames, but I think in the same way that a mathematician is a mathematician - He's not taught to be a mathematician. He either has a feeling for equations and an understanding and delight in it, not only in the purity of it, but in its beauty as well.

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

I loved working with [ Lars Von Trier], but I've done two films before, so I was quite used to him.He's a man of incredible moods of course, but he's also a hugely perceptive man, and there's no getting away from that. And he's able to put that perception into something like film, so we're very lucky.

I think [ Lars Von Trier] is a fantastic filmmaker. No question. You've got to be ready for him. He's sharp and he's got a sharp tongue and I love that. He doesn't mind it back.