I am a good mother and I feel proud about it.

You do the one film that you think is terrible, but it's a big studio film and you hope you'll get another job because of it, because blah blah blah, whatever it is. You know that you hate it, you just couldn't care less if it got made because it's not something in a million years you'd go and see yourself. And it ends up being shite and you just knew it was shite to begin with, and it doesn't do you any favors at all if someone thought you were in another shite film. So I decided it doesn't get me anywhere being cynical. It's not that I want to be.

It's very difficult to find the time or the money for people to organize rehearsals for some movies. It staggers me how little preparation often goes into these scenes which are difficult and complicated. You think, "God, it's crazy. I've never met this person before and here I am having to work at how to do a whole performance on the set." It was great to have a few days of just talking to Michael [Caine] and Daniel [Barber] and thinking about the characters and the relationship between them before we started shooting.

I've only half-admitted I'm a professional. I know I am, I've paid my dues, but one of the things I could do better when I'm acting is to really be rigorous and to think I know how to do it. To use my brain.

It's quite frightening; the business of trying to be funny is very hairy. In comedy, the potential for humiliation is huge. Trying to be funny and failing is about the most embarrassing thing you can do.

Despite being extremely professional, Michael Caine has a giggle which was lethal for me because once you catch his eyes, once you realize the other person is a giggler too, it's curtains.

I'm a dual citizen, as are my husband and children. We have got eight passports between us; we're weighed down by them whenever we go anywhere.