Well, I'm not at all like the tough, sexy femme fatale in Confidence but it's fun to play people who're really different from you, from different cultures and places. I suppose I'm a bit quieter than most of the people I play.

Film is such a director's medium; you're really in their hands in terms of the real storytelling. As an actor, you can give a performance moment to moment and some of your takes will be used and some of them won't. I think there are great films you can make with bad performances, and vice versa. There are all combinations of those things. It's really down to the director what happens, I think, so that's why it's really good to work with very talented, bold directors.

Working with a green screen is easy. It's just like being a kid. But it's not nearly as satisfying.

I think acting came later in life when I went to college. I started out there. I wasn't a big star in the school plays or anything. I guess I just really liked stories. I was an English-literature major, and that's all about stories and narratives. Film and theater are very powerful storytelling mediums. You sit in a dark room and enter another world. I love that as a member of the audience, and I sort of wanted to get on the other side.

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 think if you ask the audience to like you, it's all over.

I am definitely a worrier.