As a kid, I used to run around our garden waving a stick and pretending to be a million different people. That's why I became an actor, really.

I wanted to become an actor. I went to Guildhall School of Music and Drama, which is one of the main drama schools in London where you go when you are older. But I was doing the junior one when I was a kid. And some friends there had agents. I was fourteen and I was like, "I want an agent! It sounds awesome!" I had no idea what that was. I thought those guys looked like men in black. They were hanging around in suits all the time. So I luckily got a very good agent in London and started auditioning. And then when I was 16, I got my first film and I've been working ever since.

When I do go to L.A., it is usually for a reason - to meet with a director or something - but I'm always so happy to go back to London.

I live for challenges. In my career, all I want to do is try to challenge myself and have a varied career.

I love movies. That's still my favorite form of escape, and I usually end up going alone. I love to go and sit in the theater by myself, no distractions.

You can have a great script, or a great director and a bad script, and get a great movie. Nothing really guarantees anything.

Have you seen Cowspiracy? It takes a lot more land to feed a meat eater than to feed a vegan or a vegetarian. It's something I'd love to get into but it's very hard to persuade people to stop things they've been doing for a long time. So maybe it needs to start with the next generation. Everyone needs to raise their children with a bit more responsibility.