I've been onstage once for one performance with four days' rehearsal.

People became more interested in my love life than in me, and that has a certain effect. You start to feel very empty and worth nothing, you start to become a piece in a board game you never wanted to play.

And the most important thing - apart from telling a good, believable story, and being a true character - is to be someone the audience will care about, even if you're playing a murderer or rapist.

I've been on sets where the turnaround is so fast and the budget so small that the actors have been asked to speed things up and save money by changing in the public toilets. There's no room for vanity at times like that. It's the best way: get on with it!

I want more children but for the next three years I want to act.

I was so completely anxious before I had a child, but now my biggest worry is something happening to her, so anything other than that I can handle. That's not to say I'm calm, because that would be b****cks! I wish it were the case, but it's getting better as I get older.

But Americans find me bizarre and always ask me why I eat so many carbs. I tell them I don't get full otherwise.