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.

And of course I've got kids of my own now, and they love me being in the Harry Potter films. I'm now part of a phenomenon. You become incredibly cool to your kids, and you get a young fan base. So you became the cool dad at school. You're suddenly hip.

I have three kids who like Harry Potter so I was sort of aware of it. You can't really move from it: it's on buses, in stores, it's everywhere. One of my kids has read the books; the other two are too small but they like the movies.

Being an actor is a good way to earn a living. And to meet fabulous people. It's great to live very comfortably. I've been lucky, I've had a lot of fun with great roles, but it is true that if I were extremely rich, I would stop and I would go to play football on a beach in the Caribbean with my children.

As a drama student I got into Thirties and Forties suits.

I like a cheese and pickle. Nice cheese and pickle on a real old-fashioned bread. Ploughman's lunch.

The thing a drama school can't give you is instinct. It can sharpen instinct but that can't be taught, and you have to have intuition. It's an essential ingredient.