I'm definitely a frustrated musician, though it's more in terms of wishing I was a better guitar player and songwriter. But I've never regretted becoming an actor instead. I think it's been a more pure form of self-expression for me. I luckily found something that I could aspire to be good at, whereas I never... I think I'd never quite reach that level of artist that I enjoy in the music world.

From a very young age I had an ambition to be a musician, and to do that professionally. That's what I pursued until I was about 20, playing in bands that were taken pretty seriously at that stage.

I come from a long line of teachers. Not only did I not go into the family business; I had an aborted law career and I played in bands. 'Disco Pigs' was my first professional acting experience.

With some films you can sort of slide in, get a haircut and you're in.

In terms of trying to improve as an actor, for me it's always important to return to the stage. After doing a piece of theater for a prolonged period, I can think I must have surely improved in some way as an actor - you must be fitter than you were prior to doing it. For me, theater is very, very important in keeping things fresh and dangerous.

I think it's necessary to keep moving forward. I've always said that nostalgia is death, really for anyone creative.

Sociopath is a word that has sort of become shorthand for psychopath and there's a distinct difference, it's interesting if you look it up. Sociopath if you look at the medical definition, the profile of a sociopath is that they are supremely intelligent people that are also pathological liars, they have no moral structure and there is one more, they have no compassion or empathy for other people.