Actress who rose to fame through her work in the films Donnie Darko, Into the Wild, and Sucker Punch. She played Johanna Mason in The Hunger Games: Catching Fire and The Hunger Games: Mockingjay - Part 1 and Part 2.
She attended the Professional Children's School for a year after completing her home-school education.
She was legally emancipated in January 2000.
She was born in Sparks, Nevada to a single mother. She dated actor Erik von Detten from 1999 to 2000. In 2016, she and Ethan DeLorenzo welcomed a son named Ode Mountain. She and rock singer Alex Ebert have been in a relationship.
She was cast in the Hunger Games sequel, Catching Fire, with Jennifer Lawrence.