I was in the bath at the time, and my dad came running in and said, 'Guess who they want to play Harry Potter!?' and I started to cry. It was probably the best moment of my life.

Fame is damaging when people become reliant on it for their sense of self, and their identity, when fame is linked to how you see yourself.

Go boldly and honestly through the world. Learn to love the fact that there is nobody else quite like you.

The thought of dancing scared me. A lot. Because I have absolutely no aptitude for it.

My taste in the films I've taken as an actor is similar to what I'd do a director or writer: all quite odd, challenging stuff, slightly off-the-wall.

In some ways, you get to find your voice better in [a sequel] because you have to define how you're doing it differently.

Mostly, I'm drawn to great characters and great worlds that use weird things for their language - whether it's dance, whether it's pop music with Justin Bieber, or whether it's magic.