I always felt slightly grubbier than most American people. I was never quite as groomed as everyone else, never quite as fit as anyone else. I didn't have my protein shake and my vitamins.

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!

Americans are so direct. They'd ask me, 'What's your five-year plan? Do you have a five-year plan?' I don't know what I'm having for my tea tonight let alone a five-year plan.

We have a house in Umbria that we bought just before we went to America. That meant we couldn't go there as often as we thought, but now we're back, we're going to start using it more. I love the light, the countryside, the language and the fact that children are accepted everywhere. The Italians get passionate about everything, too.

I do quite like sightseeing. I like churches, museums, galleries and all that stuff. I love the smell of a church in Italy or the smell of an old greasy spoon somewhere. I like markets and little funny shops in the backstreets of Florence.

I take my hat off to mums who have lots of kids. Anyone that says being a mum isn't a full-time job has obviously never had any.

My mum Margaret was a single parent, but though life was a bit of a struggle she gave me every encouragement.