I have a few girlfriends, but nearly all my friends are guys. I don't think I ever wore girl clothes. I wore baggy jeans, baggy T-shirts, sweaters, just to avoid the looks that everyone gives you when you're a young female in the world.

My roots are Scottish. My dad's parents are from Scotland, and my mum's dad is Scots.

My favourite actors are all dead or dying. I just love Jimmy Stewart, Bette Davis, Katharine Hepburn - I was named after her - and Cary Grant. I just love old black and white movies and the stars in them. It must have been a great time to be in Hollywood.

I think you have to have a sense of humor about every movie that you're doing. Your character needs to be relatable in a way that, even when you're doing the most bizarre things, sometimes a bit of tongue in cheek is necessary to keep up the believability of it.