My problem is I'm an addictive personality. I can't have one coffee. I can't eat one piece of chocolate. I can't have a little bit of drugs.

To work in America or other places is more about curiosity, because I'm dealing with cultures and sensibilities that I don't really know. So I'm having to sort of investigate them, which I'm fascinated in, but it comes from a place of curiosity rather than a real need to get something out of my system.

I can be completely indulgent and spend as many hours and days or weeks as I like on one thing. Writing music and sitting in my studio, just pottering with ideas, it's a lot more personal and creative for me, I don't feel restricted.

Working on a studio picture, I can't help but be aware of all the political stuff that's going on. I have to work to be able to survive, in a sense.

I always look at films as real stories with real people in real situations. That's why I struggle with the whole notion of calling someone the 'good guy' or the 'bad guy,' because I think we all have potential to do good things and all have the potential to do bad things.

I'll generally write out every scene that's in the film on a couple of pieces of paper, just with a little one-line. And then I can scan it a bit and go, 'This first third of the film, generally, I'm kind of calm.' Then I might do something on one piece of paper that just relates to the energy of the character.

I feel I do my best work when it's all there on the page, and I feel that the character is very vivid as I read the script and I'm not having to create stuff and trying to cobble together something. If I have to do that, then I don't entirely trust what I'm doing.