In The Godfather, for instance, they say they won't deal drugs because they have a code of behaviour. He is the last remnants of that. So playing someone like that, who is also in pain with his kidney stone, means you're beginning to find a dimension of the guy who is king and all show and the private guy who is in pain.

I'm really into my photography and am trying to catch up with digital generation - I was used to the old 35mm cameras.

Deep inside, I am desperate to do comedy.

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.

The great exception to that, of course, is Johnny Depp, who is absolutely the ultimate character actor. Johnny Depp is the future of the character actor and thanks to his success maybe we will see the return of an era when my sort of actor is back in vogue. It's not in vogue for me to be in Hollywood movies as lots of different people.

What we're doing is saying what happens with the establishment and how are we as ordinary human beings are used as pawns. What do we really know about what goes on! We think we are a democracy.... Are we? I'm not so sure.

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.