I think I'm always very naïve. With 'Kill Your Darlings' and 'Horns', I'm like, "Why wouldn't everybody love this?" But I guess it's going to divide people in some ways. But if you're willing to go with it and suspend your disbelief, you're going to get something amazing and something unlike anything else.

I have quite a rich inner life, and I'm constantly looking for a way to express that. I haven't found it yet in acting. When you're playing a character, you're only going to find outlets for very specific parts of your inner world.

I'm not looking for sequels, but when something comes to you, and you're already a fan of that world, you have the desire to do it your way.

I'm certainly lucky to have got famous through something that was so well liked, generally speaking.

Harry Potter star Daniel Radcliffe has confessed that until recently, he thought the 16-year-old fellow tween idol [Justin Bieber] was a female. 'I only heard Justin Bieber for the first time two weeks ago. I genuinely thought it was a woman singing. I'd never heard it before. Is it big in England yet?'

The best thing I've learned is, if you're going out, never go out alone - you leave yourself vulnerable. If you've got someone else there you trust, they can say, be wary of that person. I probably used to be too trusting of people.

I'm also a fan of ridiculously coloured and patterned socks.