I like acting in London-not least because it means I can go home after the show every day, rather than being on location making a film.

Once you get into your stride, the camera becomes like another person in the room. It's like being in a very small theatre where there is no getting away with anything because the audience is centimetres away from you.

My parents were political, so it's definitely in my bones. Wherever I am, I always seem to get involved with politics. I think, once it's in your bloodstream, it's always there. I love it.

I think politics can no longer be assigned to parliamentary activity and it probably never could be. But politics with a small p and the history of trade union movement really interests me.

When your life is as precious as all our lives are, then it needs to be kept precious and looked after and treated well. And that is not something we should be sharing with a wider audience.

I play the guitar. This year at the Sundance film festival, I joined the band from 'The Guitar' on stage. We warmed up for Patti Smith, and then the director Michel Gondry got on the drums to play some songs from the soundtrack to his film Be Kind Rewind with Mos Def. It was pretty mad.

I've always been a strong feminist and felt that the image of models was detrimental to women. That whole thing really bothered me. I would think about quitting about once a week.