I think you can get better in mathematics on a school level, but when you're talking about being a mathematician, I think that's definitely a gift of genes or whatever.

Bong Joon-ho is enormously sensitive to performance. He knows what he needs to see and that's all he needs to shoot. He is so daring. We don't do that in the west. We shoot everything.

I've never done a [Berthold] Brecht. In the 1960s when the Berliner Ensemble came over [to England] with Helene Weigel [Brecht's second wife], I saw all the Berlin actors. It was an amazing time, very exciting early 1960s.

I left drama school and went straight into a 10-week film for which I was paid £75 I might say, which for 1962 was one heck of a lot of money.

I think it's interesting to see how things come into and go out of fashion.

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.

I think particularly Daniel [Radcliffe], he knows what he's doing. I'm sure he'll finish up a producer. He really realized what it was, knew the size of it. And it was gigantic, the biggest franchise [Harry Potter] in history.