She recalled, "I never wanted to be the center of attention — I wasn't that 'I want to be famous, I want to be an actor' kid.I never sought out acting, but I always practiced my autograph because I love pens.
Born in Los Angeles to parents working in show business, Stewart began her acting career in 1999 with uncredited roles and a minor character appearance in several films.
Has an older brother, Cameron Stewart, who works as a grip in television and film, and two adopted brothers named Dana and Taylor.
Her parents' home where she grew up is in Woodland Hills area of Los Angeles.
She starred in Personal Shopper (2016), written for her by director Olivier Assayas, who had worked with her in the previous film.
Stewart was listed as the highest-earning female actress in the Vanity Fair "Hollywood Top Earners List of 2010," with an estimated earning of .5 million. Her mother, Jules Mann-Stewart, is originally from Maroochydore, Queensland, Australia.
She received widespread recognition in 2008 for playing Bella Swan in The Twilight Saga film series (2008–12), which grossed over .3 billion worldwide.