So, if I ever played Napoleon it would be with an Italian accent. He was an outsider, which also interests me.

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.

I was a typical teen growing up in the 1960s, when everybody was into gurus and meditation.

Napoleon was one of the most complex personalities in history.He was ruthless, small in stature, a bully, vulnerable, unfaithful and I think he was the first person to shoot prisoners of war so that he had food for his own army. He was absolutely single-minded but he also obviously had charm. How else could a man like him have come back as he did and have the nation rise to a man!

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.

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.

When I was 18 and not sure whether I wanted to be an actor, I realised that a playwright has no voice without an actor. That's my reason for acting: to get that character as right as possible for my writer. And I have never changed my philosophy.