'Diary of a Teenage Girl' was my first American movie. It was my first movie in an American accent. It's based on a graphic novel, which was written in 2002 by someone called Phoebe Gloeckner. It was turned into a play by Marielle Heller, who then wrote it as a screenplay for Sundance Labs.
When you're a teenager, your essence is so specific to being a teenager, and everything becomes so extreme. Your emotions are on the surface, and you oscillate between different things at one time.
I was really quite geeky at school. At one point, I wanted to be prime minister or a mathematician.
When you're portraying someone that really existed, there has to be a time as an actress where you leave reality and move into the fantasy world so you can do your job of creating a character.
'70s music is the kind of music I listen to. '70s clothes, I adore.
Movies make teenagers have quippy answers for every question. Nothing seems to faze them, and they're like, 'Oh, whatever.' You're not like that when you're a teenager. You're really earnest. Things really feel like life or death. And you kind of oscillate between emotions at one time. It's very emotionally draining being a teenager.
If you're doing something like 'Arcadia' by Tom Stoppard, which has been done millions and millions of times, and it's been played some unbelievably well-respected actors, there's a lot more pressure there. But I try not to think about all the other people who have done it before me. You've got to try and be original.