The sixth Harry Potter film - I don't like my performance in that film at all.

That's what fame does to you. You acquire another self.

It's interesting because people assume that because I'm famous I know all famous people.

I've never been one of the cool people at school, but then again, I don't get the people who are cool. It's not that I don't like them, it's just that they don't interest me.

We sing a lot of the soundtrack in this film [Swiss Army Man] - me and Paul Dano - and on the last day of filming we had to just get into the back of our sound mixer's van and record a really crappy, rough version of the singing then. For some reason that was one of the most fun days.

I had to smile when stories emerged questioning whether I was gay. Obviously I knew I wasn't but people were curiously desperate to suggest I was ... when you know a gay guy has a crush on you, it's the most flattering thing.

I'll miss some of the opportunities that playing Harry [Potter] brought me.