I get mistaken for Amanda Holden; I've had that since I was 12. I get Carey Mulligan, too. We look quite similar, and she does 'Bleak House' and I do 'Cranford,' so people mix us up. I'm sure we'll play sisters at some point.
I knew I wanted to be an actress, but I hadn't ever really told anyone. I'd always got quite good grades, so people assumed I would go and do a 'normal' job. My dad took me to my first audition for drama school and picked me up without anyone knowing, really.