I feel like a lot of the films I do, part of the reason I like doing them is I'm not 100 percent sure what it's going to be. It's exciting. I read an equal amount of very generic scripts, and you kind of know exactly what those are and that doesn't whet my appetite. I already know what it is or I already know what the character is. It's just a lot harder to get interested.

On set, the playground for the character, how much it takes varies. Is it like ballet, is it like jazz? The content always lends itself to the form, and it's really not mathematics.

I think it was a lot of trust as well [between me and Daniel Radcliffe]. If we didn't have that, it could be a very painful film [ Swiss Army Man] to go make.

For me, playing a really bad character is about figuring out what brought the person to where we need him.

Sometimes it's summer camp on location. So it's nice to have a little New York community of people you love.

It's a constant learning process - not just what you need to learn for the character or as far as good actors - but as an actor, there's no limit. Every time now, you're learning so, I think that's a good thing though.

Everything you do, every experience that you have, enlightens you a little bit or worsens you.