Whenever I'm in theatre situations I will go out of my way not to talk about my father, but in the film world I can be really proud of my family and say, 'You know what: my dad's a really, really famous theatre director,' because nobody has any idea.

I'm a very private person. I barely tell my friends what's going on half the time, so the idea that I should then talk to the world about what is going on seems anathema to me. People can say what they want. I'm not going to change anyone's mind.

It doesn't matter how much polite self-deprecating fluff you have on the outside if you don't have a steely something in the middle that says, 'You know what, I'm actually really, really good at this, and this is what I can do, and I'm going to do it.'

I think it's a bit short-sighted to play any character and not explore, in some respects, the way they act when things get really bad.

When you come out of the theatre and you don't even talk about that film or remember it, then it disappoints me.

When you work with filmmakers, and it's their first film, there's an exuberance and optimism, which is quite... There's no room for being jaded. Thinking that you know it all.