I love playing real people. It's a huge challenge and responsibility which I take on board and which I relish. It also scares me to death. Give me a totally fictional character and I don't have the same sort of responsibility. If, though, I play Sigmund Freud or Robert Maxwell or whoever then there is a responsibility.

There are clues in the script... he will say "I think drugs are immoral"'... but the guy who says that kills, tortures, pimps and has whores working for him. There is this strange morality going on, which is rather like the Mafia.

A successful swindler has to be a great salesman even more than a great actor.

I think its very dangerous, the idea of celebrity - you have to be constantly controversial to maintain the status of celebrity. Reality TV is the death of entertainment - its just mindless TV but popular because of its voyeuristic nature, and people are very voyeuristic.

My fun as an actor and my task as an actor is to transform myself to become other people. I enjoy becoming characters but I don't enjoy becoming caricatures. The research I do is only necessary in so far as we move into other dimensions.

Although I'm a very emotional man, I just can't have blind faith, I have to find out for myself.

When I was 16, I made some little 35mm documentaries about the poor in London. I went round Notting Hill, which was a real slum in the 1950s, shooting film.