Life's too short to worry about injecting botulism into your face to get rid of a tiny line because you've laughed too much. To me, that's a bit warped.

I think that children that are acting are always pretty savvy anyway because you're conducting yourself around adults a lot of the time, aren't you? But there is this worry now that children just want to be famous.

I just wanted to be an actress. It never occurred to me that I could become famous, because I'm not one of those people who's automatically going to be the lead. I always saw myself as the mate.

Well, I'd never done an animated movie before, which is why I was so excited about doing it. It was one of the little boxes as an actor that I wanted to tick off. I wanted to do an animated film. So, after my mum got over the fact that I was never going to play Shrek's sister, this was the nearest I was going to get!

I always knew I wanted to be an actor, certainly from the age of eight or nine. I think when you know what you want to do, you're very lucky because you've got a focus.

I was on my own, living in Los Angeles, and I didn't know my way around, so I thought I'd walk everywhere. Well, that certainly got me noticed. Any woman who walks any distance at all is automatically regarded as a hooker!

Mind you, if a blockbuster movie was offered, I wouldn't say no. I can do accents - I don't always have to be Scottish.