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.

I first decided that I wanted to act when I was 9. And I was at a very bizarre prep school at the time, to say high Anglo-Catholic would be a real English understatement.

The director [Elfar Adalsteins] came to me through my agent and I had a read of the script [of the "Sailcloth]. I thought immediately this is someone who is writing for the cinema. Not having to go through the tedious business of taking something from literature and making that awful leap that is so difficult to make anyway, from literature to cinema. It's refreshing to be able to deal with a subject like that, to be written where the driving force is the image on screen and you don't need any words. The more that we can do that [in film], the better.

I often say, with something like 'The Elephant Man,' had it been an American series for television, where you have to sign your life away for seven years...well, maybe I would never have made 'Sailcloth.'

A very, very impressive director, Tomas Alfredson. It's only his second film [ 'Tinker Tailor Soldier Spy'], but he's a real find.

I turn up in Los Angeles every now and then, so I can get some big money films in order to finance my smaller money films.

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.