I didn't have an incredibly active social life as a teenager. I always wished it was a little bit more exciting than it was.

There's very little you're not exposed to in New York City, in terms of ideas and physical things - sights, sounds, smells, different kinds of people. But one good thing about growing up fast is you get over it fast, too.

Acting is something that I always wanted, but I never paid attention to the notion that it might actually work out. You have all sorts of ideas about what you want to do - at one stage, I wanted to be a jockey - but this is the one that's a big deal.

I am always plagued with 'I'm not skinny enough, I'm not in shape.' I am not naturally this super-svelte kind of girl. I'm okay with that in my personal life. But it is kind of hard at times. I feel inadequate, I suppose?

'Red Knot' is a film that I shot in Antarctica almost three years ago on a boat. It was a film that was improvised and it had very interesting circumstances while making the film, obviously. We were on a small boat bobbing around in Antarctica. It was a really remarkable experience.

But I loved doing the physical stuff for 'Dredd.' I have to give a shout-out to the stunt team that I worked with.

I trained in Shakespeare, and that's all comedy, even when it's tragedy.