I've always been fascinated by activists, people who will devote their life to a cause, people who go to India and to Africa and put their life in jeopardy to do what they believe is right.

I was advised by an American agent when I was about 19 to change my surname.

I think London's sexy because it's so full of eccentrics.

I think actors have a choice of drawing attention to themselves or living on the outskirts.

I prefer being as far from the centre of celebrity as possible.

I moved to New York last year and I love it. It's a huge change and I've always wanted to spend time there. It's like a more intense London, and everything's up a few notches. The lights are brighter, the pace is faster and the food's better.

I have absolutely no empathy for camels. I didn't care for being abused in the Middle East by those horrible, horrible, horrible creatures. They don't like people. It's not at all like the relationship between horses and humans.

I find Hollywood really toxic.

If I went out in killer heels and full makeup, blow dry, the whole thing - anyone dressed up like that could be intimidating to men and women, really. It's so, look at me. Do you know what I mean? But I love women.

I don't believe your soul mate has to share your politics.

You have to be quite stupid to act.

As Ralph's character begins to discover the political thriller aspect of the film, he falls deeper in love with his wife, so the two run together. That's the beauty of this film. It has fast pace and excitement, but it also has heart and soul.

There's not much room for eccentricity in Hollywood, and eccentricity is what's sexy in people.

The older you get the more capable you get at managing life.

That was me under the bath and the water being held down. The director wanted it to look as real as possible so he told Keanu, in front of me, don't go easy on her. So it was scary.