I'm not the best audience for that because I'm not a great science-fiction fan. I just never got off on space ships and space costumes, things like that.

Science fiction is filled with Martians and space travel to other planets, and things like that.

I'm a huge science fiction fan.

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.

Wanting to be a good actor is not good enough. You must want to be a great actor. You just have to have that.

Science fiction fans are great, but they just aren't the same as groupies.