In 2015, she received critical acclaim for her role opposite Juliette Binoche in Olivier Assayas's French film Clouds of Sils Maria, for which she won the César Award for Best Supporting Actress.
Stewart reunited with Assayas the following year in the supernatural thriller Personal Shopper (2016) and made her directorial debut with the 2017 short film Come Swim. Her mother, Jules Mann-Stewart, is originally from Maroochydore, Queensland, Australia.
Following a role in the fantasy film Snow White and the Huntsman (2012), Stewart eschewed parts in big-budget films in favour of independent productions.
That same year, Stewart had a small role in the Sean Penn-directed adaptation Into the Wild.Stewart starred in the Lifetime/Showtime television film Speak (2004), based on the novel by the same name by Laurie Halse Anderson.Stewart, 13 at the time of filming, played a high school freshman, Melinda Sordino, who after being raped nearly stops speaking.Born in Los Angeles to parents who worked in show business, Stewart began her career as a child actor in 1999.She gained notice in 2002 for playing Jodie Foster's daughter in the thriller Panic Room, which garnered her a Young Artist Award nomination for Best Leading Actress in a Feature Film.