My mother was in the kind of late-sixties, early-seventies origins of female emancipation. And she was very much like, "You're not going to be defined by how you look. It's going to be about who you are and what you do."

Now we live in a time where the public and the private are completely fused and there isn't such a great distinction. We know our private lives are constantly made public. With Facebook and Twitter there isn't such a desire, it feels, to keep things private.

Fashion choices are never arbitrary. Even if you say you don't care, that's a decision. There's something you're trying to say.

I think personally it's not good for anyone - I don't think infidelity leads to happiness. It's painful for the person being cheated on, but also for the person who's cheating.

There's such a sense of theatre in getting glammed up; it's like putting on a play or short film.

It can be very intense being an actor; it can be quite a small world. Then you speak to your friend who is a scientist and they have a completely different perspective.

I'm keen to have balance, as much as possible. I put every ounce of myself into my work, but also it's important that I don't miss every single wedding of my best friends. I couldn't do what I do without my friends and family.