When I was young I had so many inferiority complexes. I had an inferiority complex because I didn’t go to university. I had an inferiority complex because I didn’t train. Then it gets tiring. And you do get bored of it.

It took me ages to grow into being a woman, into being happy with it.

I just thought I‘d never look good in what everybody else wore. So there’s no point trying. You just have to do what suits you, and it doesn’t matter if you don’t look like everybody else. Be you. That’s our gift and we’ve got to celebrate that, but it does take ages. I was wracked with self-doubt for years. I get spasms of it even now – I’m not indelibly self-confident.

I love movies where people see the world from a different angle.

I always feel better after a good scream.

I hate this image of me as a prim Edwardian. I want to shock everyone.

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.