People who have car collections - I never understood that. I always thought that was unnecessary. It's not beautiful, it's not creative. It's just showing how much money you've got.

I think it was pretty obvious early on that we had both come with kind of the same attitude of "Let's just [jump] in," and neither of us was going to be precious about it. I feel like the thing that we learned is, weirdly, the most intimate thing or a very intimate thing you can do to somebody is hold their tongue with your fingers. When Paul [Dano] is making me talk [in Swiss Army Man].

When you're seventeen to early twenties, that's the time you're trying to work out who you are. If you're trying to make some kind of artistic or creative impact, that's the age when you start to figure out how to do that.

How irritating it must be for people, to be bombarded with me!

I have a very busy personality.

I'm never going to be in something as commercially successful as 'Harry Potter' ever again. It's impossible. So that gives me incredible freedom to go off and make the slightly off-the-wall films that I want to make.

It's mainly about working hard and proving to people you're serious about it, and stretching yourself and learning. The mistake a lot of actors make, particularly young ones, is allowing themselves to feel that they're the finished articles, the bee's knees, and it's not true.