Lotte Lenya was all emotion. She wasn't anything but emotion. She was not an intellectual.

Elephant Man [movie] was much more difficult physically. This had a couple of days. It was quite tricky. I had my leg strapped up behind me and I am a little older now. It was all marvelous, though. He [Bong Joon-ho] is one of the most fabulous directors in the world.

The big problem with literature is people tend to take the dialogue from the book, forgetting that everything that surrounds it is literate, therefore not knowing quite how to put that on screen.

Films don't take as long as people think. 'Harry Potter,' people always used to say, 'Well, my God, do you ever get any time to yourself?' I think I did, in 'Harry Potter,' over a 12 year period I did five days. So it's not exactly exhausting.

There is always a better choice that you were unable to quite touch with a single stroke. Even in acting, there comes a point, like a painting, where you have to say, "That's it. I can't go any further with it." And sometimes, you say, "I'm really pleased that that's where it's finished up." Other times, you think, "I don't think I really quite got there, but I haven't got time to go any further." Rather reluctantly, you have to say "That's it."

I'd say the film to avoid is a director's second film, particularly if his first film was a big success. The second film is where you've really needed to have learned something.

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.