At some point, you have to disconnect, if the obsession with playing a real person gets in the way of the movie at large. At the same time, we're all interested, as actors in trying to get as close to the real thing as we can, and whatever you can do in order to create that transformation feels fun and, for me, the furthest I can get away from myself is fun. It's all part of the costume, the accent, and all that stuff. It's about trying to get close without it being a detriment to the point of view of the story that you're trying to tell.

There's the pressure of being a No. 1 on the call sheet, being a lead actor. There's almost this feeling like being captain of the team. You want to put a bit of energy into actually setting a good example.

When people are really great at what they do there is no aggression because they are comfortable in their own skin. They know themselves well enough that you don't have anything to prove.

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.

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.

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.

Sometimes, the smaller roles in movies can be the most interesting. If you only take the stance that you'll only play central characters in movies, you'll find yourself not being able to indulge in that morally grey terrain that makes support characters so rich and interesting.