Fans are really important for me. And if they take pains to write me, it's the minimum that I answer myself.

What first attracted me to doing Swiss Army Man was just how mental it was - how insane and wonderful and original the script was.

I think I tried to steal a Mars bar once from a shop but then I went and put it back.

My favorite phrase, that a friend of mine who worked on the Potter films and was a lot older than me would use in front of me, and I picked up from him many great phrases - the English have a lot of great idioms for sweating. I don't know why that is. But that's what we do. I feel like it's particularly our country; probably everywhere has a lot of idioms for sweating. He always said, "I'm sweating like a glassblower's asshole," which I always found an incredibly strange and yet vivid image.

The nerds are the ones that make the films and do loads of other really cool stuff in their life.

I'm always amazed at the way some actors' behaviour is truly disgusting. That's one thing that will never happen on one of my sets if I ever direct.

I basically have the diet of a 19th-century Irish navy, apart from the litre of stout a day. It's meat and potatoes and bread and cheese: those are my four food groups.