It's a very fascinating thing for an actor to play somebody who is suffering, and you have to express the suffering, but in an inarticulate way and sometimes a dysfunctional way, through violence.

Different races never fazed me because coming from Bethnal Green, I'd been around people of different races forever. Different class? That was much harder.

I was approached to do something for seven years, and it was a quality project. I did seriously think about it, but I didn't want to be away for six months of the year. I've never done the L.A. thing where you go and have loads of meetings; I can't say to my wife, 'I'm going to wait by a pool for six months.'

The trick to acting is not to show off; it's to think the thoughts of the character. I was lucky because when I started acting, it was doing jobs above pubs. I learned to act in anonymity, so by the time people saw me, I knew what I was doing. I was crap for years, but no one saw me being crap. It's a trade you learn.

When you're the youngest and the only boy, you get spoilt but you get told you're spoilt so you don't get to enjoy it very much. I was the only man in the house because my parents divorced and my dad moved away when I was 13.

Mike Leigh taught me about making choices - as an actor, you choose between being honest and clever, and with Mike, it's always about being honest. I learned how to behave on a film set from Jim Broadbent. He was a great example of someone with a fantastic career who kept his feet on the ground.

I wanted to work with Bryan Singer because I like his films.