The tricky thing becomes: Do you know yourself well enough to then portray that on screen? And for me, I find that really hard. I'd rather hide behind accents and funny walks.

It's tricky. I've never been standing at the top of the tree with tons of money thrown at me. I've never really had a profile. So in a way I have this 'nothing to lose' attitude.

I'm not going to allow myself to second-guess projects. I'm just going to do the ones that I fully love and believe in - that's a real privilege.

The Great Gatsby' ticked so many boxes for me.

I always kept myself fairly fit.

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.

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.