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.

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.

I don't really want people to see me. I'm not into stardom.

I'm 64 years old, and I've been acting now for 42 years. Only recently have I thought to myself, 'Hmmm, it may be interesting to start directing.'

As I say, there's something that scares the hell out of me but it really makes me work hard in losing myself. I'm not really interested in me as an actor or being a personality player, or a Hollywood star. What's given to me is to become different people and to find the truth of that. That is really what I do.

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.

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.