One of the things I've always enjoyed is moving around and staying fit. Physicality is such a big part of being an actor, but it's also about stillness and silence.

Basically you want as many people as possible to see your movie.

I'm on the list that I thought I'd never be on. I'm not sitting here thinking, 'God, I might get this part' or 'is it too late for me to play Hamlet?' It's really about: who do I get to work with? There's so many people on that list.

I can't sing or dance.

There's a real sense of fighting and destruction in our DNA that we don't get in touch with.

Whenever you deal with science fiction you are setting up a world of rules. I think you work hard to establish the rules. And you also have to work even harder to maintain those rules, and within that find excitement and unpredictability and all that stuff.

To act with a tennis ball and imagine it's a tentacle, or if you're in some kind of wilderness film and you go, 'Okay, we can't have a grizzly bear here, but imagine when you step over the rock there there's a grizzly bear.' I don't know. They're tough moments.