Growing up in a particular neighborhood, growing up in a working-class family, not having much money, all of those things fire you and can give you an edge, can give you an anger.

It's always hard when you're playing someone for a lot of people out there who are going to see the movie after reading the books. There's a communion between a reader and the writer, so people will have an idea who Sirius Black is and I might not be everyone's idea of that.

I'm rarely asked to play the smartest man in the room.

Political correctness has become a straightjacket.

I applaud anything that can take a kid away from a PlayStation or a Gameboy. That is a miracle in itself.

I don't see a great difference between someone sending a robot or a drone to bomb people and controlling it on a PlayStation from another country. It's thousands of miles away as opposed to someone in an airplane who is thousands of feet away releasing a bomb.

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.