I saw Nosferatu in the cinema when I was in my mid-twenties, and I had been brought up on Christopher Lee's Dracula.

I wasn't very scared. I was scared as a kid, but I wouldn't have been scared seeing it as an adult. But Nosferatu was really, really freakish because there is something almost documentary-like about it. There's no sound and it's just very moody.

So I think of that when I think of vampires. That's it really. For my research, I've watched about three quarters of an episode of Buffy the Vampire Slayer.

If you were a real vampire, who would you most like to bite?

Ah, somebody with good blood. That's a very good question. Who would I most like to bite? I don't know. My wife!