I always call Billy Elliot a fantasy autobiography because I never wanted to be a dancer, but I got a lot of stick from the other kids about wanting to be a writer and being interested in drama.

There’s no comparison. Veganism is the single most important thing that one can do today.

From kings to groundlings, Shakespeare made his work profound for everybody. That is how it should be. There is no hierarchy in theatre. It makes everyone part of a collective.

In many ways, theatre is more rewarding for a writer. I used to think it was like painting a wall - that when the play is finished, it's done - but now I realise it's more like gardening you plant the thing, then you have to constantly tend it. You're part of a thing that's living.