I was reading William Shawcross's biography of the Queen Mother, dressed in my witch outfit! And you know what? It was a really good mix; it was a therapeutic mix.

Wear what you feel comfortable with. People say nasty things about what I wear in the street. I'm always in worst dressed lists, but you just have to dress for yourself and ­nobody else.

I just went and got an agent because I thought I can create my own world - you can't right your own life, but you can escape to a world where you can have control.

J.K. Rowling said Bellatrix's role was going to be significant in the last one, when I showed some reluctance in playing a tiny bit part. Up front, they said, 'You're very significant in the last one.' But significant could mean a lot of things. That could just mean a significant plot point. Doesn't necessarily equal big part.

You can actually have a pitch button, you know, to get people on pitch.

On corsets: I said, You have got to be kidding. I am an ape and yet I am still expected to squeeze myself into one of those damn things.

What I loved about playing the corpse is that obviously somebody else got to do the physical part. It appeals to the part of me that likes playing character parts and getting the chance to get away from my own physicality.