The book tells you everything you need to know. The book is the map of the world that you're in with the character.

Reality TV to me is the museum of social decay.

Rather like Batman, I embody the themes of the movie which are the values of family, courage and compassion and a sense of right and wrong, good and bad and justice.

You take what you know, and you put it through your own prism. If I play characters that break down or cry, it's Gary Oldman crying; it's not the character crying.

Whats fascinating is that when you write a script, its almost a stream of consciousness. You have an idea that it means something, but youre not always sure what. Then when you get on the set, the actors teach you.

Overall I enjoy a certain anonymity. I live a very normal, very ordinary life.

So Harry Potter came in and it is nice that I have kids of the right age. I took them to London and they walked around the set and met Harry Potter and that is thrilling.