The one piece of advice I would give to any actor is, if you want to go out on the street without being recognised, without even being looked at, go out with a 6ft 8in beautiful transsexual. No one gives you a second glance. Especially when you're 5ft 5in.

I was very sad to leave Harry Potter but equally there will be an element of excitement about the idea that a script might come in and I don't have to go: "I'm sorry, I'm kind of busy for the next four years." The idea of that is quite exciting.

I just have this fear that I'll get on stage and there'll be that brief moment of adrenalin and I'll forget my line.

I don't think of those things [from farting, to male on male affection, to crossdressing] as being taboo, I suppose, so it didn't strike me as, "Oh, I'm breaking boundaries and stuff..."

I think it speaks to the fact that other people are as excited about originality as we are. I think the thing that has been wonderfully communicated in the trailers and all the promotion for the movie [Swiss Army Man] is that it isn't like anything else you've ever seen, and we're not just saying that. I think that excites people.

I get constantly mistaken for Elijah Wood. I was in Japan and someone held out a photo of him for me to sign.

I'm a huge fan of Brad Pitt. He could have done rom-coms his entire career, but he took it in a different direction.