Yeah, well that's the best thing about it, I think, is knowing kids and kids getting mental when they know you're in it. Any kid you meet and anyone I know tells the kid you're in it and they get short of breath.

What we do is ridiculous! I think that even when what I'm doing is serious, even when I'm not turning into a werewolf. It's a silly thing to do, isn't it? It's what you do in the playground when you're kids - but actors just never stop doing it.

I had such a nice time making it, and I can't wait to make the fifth one. The whole crew were just really, really lovely. All the costume people, the make-up girls, the kids - even my driver.

'Naked' kind of kicked me off into the film world. It just so happens that all of the things that I have been offered have been films, and I've enjoyed the travel that goes along with that.

I could, of course, have written about the film world and the jealousy there and the frequent belief that others don't have talent. But, for some reason, it just struck me to write about art.

It's certainly not easy having to spend a lot of time apart, and having a five-year-old child who's got to be at school. So we need to learn how to organize our time really well because for months we will be in two different countries.