A mathematician 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 don't think that's something that you learn at school. 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, you know? Whatever your pool is.

Very, very broadly speaking, you can put directors into two areas: One for whom you work, and the other with whom you work. And I prefer the latter, for obvious reasons. It's a great relief to feel that you're working with someone rather than for someone. You don't feel that you're being tested, as it were.

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

Snowpiercer has both [optimistic and pessimistic]. It was essentially optimistic. The most pessimistic was my part, because of his knowledge. He knows how it started. The status quo, he knows, has to be maintained, otherwise there is no chance. He knows that this revolution is completely understandable and is also commendable. He also knows the negatives. In the end, that's not a very positive position to be in.

Very broadly speaking, you can put directors into two areas: One for whom you work, and the other with whom you work. And I prefer the latter, for obvious reasons.

In the end, the game is the same. Football is still football. Now, they may play with different formations, they may have a different idea of training, but the game doesn't alter. I don't mind how any performer - indeed, why should I? How arrogant of me if I did? - manages to get to what they have to get to. It doesn't matter how you get there, as long as it isn't going to destroy other people on the way.

People are not what they seem to be according to their looks.