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.

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

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.

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.