I like the laid-back ladies. Looks are stressed so much these days, and a lot of girls feel they need to do all of these weird and wonderful things to look good, and they really don't. The best-looking girls don't do anything; they just sort of know they're beautiful, especially in jeans and a hoodie.

One of my first things I was fascinated with when I got on set was how does Grant do all this Flash stuff? it looks so good as the end product, but how does the special effects team work? How does the visual effects team work?

No, I don't suppose I'm so much a collector sort of person.

I'm not a big splurger of money, but my guilty pleasures do lie within BMWs. I get roped in.

I'd rather play a character that was really, really different to me as to someone who is quite close to my character.

I don't like to label films with a genre.

People always tell me I'm nothing like my character. Well, hopefully not! He's a character who's very defined. He was purposefully written by Jo Rowling as very one-dimensional in the first few books, because you're supposed to hate him.