I'm the only kid in the world who doesn't want an eighth Harry Potter book.

In terms of drama school, what that will give you that you won't necessarily learn on a film set is the technical ability - ie, projecting your voice and stage craft.

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.

Every day I would come to set [of Swiss Army Man] going like, "How are we going to do this?".

Somebody I love and have a huge amount of respect for once told me something that, to this day, I don't really think I understand. It was probably toward the end of Harry Potter, and they were talking to me about afterwards and that kind of stuff. And they were saying, "You need to think of yourself as a brand and you need to protect that brand." I just don't understand what that really means in terms of being an actor, and I also think I would find that a slightly soul-destroying way to look at myself.

All it takes is for me to be seen chatting up a girl for [tabloids] to, you know, make up some crappy headline about me being a sex rat or whatever they call it.

I'm into weird kind of, anything that resembles magical realism.