Bird Box is a 2018 American post-apocalyptic horror thriller film directed by Susanne Bier and written by Eric Heisserer. Based on the 2014 novel by Josh Malerman, the film stars Sandra Bullock alongside Trevante Rhodes, Jacki Weaver, Rosa Salazar, Danielle Macdonald, Lil Rel Howery, Tom Hollander, Colson Baker, BD Wong, Pruitt Taylor Vince, Sarah Paulson, and John Malkovich. The film follows the character Malorie Hayes (Bullock) as she tries to protect herself and two children from entities that cause people who look at them to kill themselves. Bird Box had its world premiere at the AFI Fest on November 12, 2018, and began a limited release on December 14, before streaming worldwide on Netflix on December 21, 2018. Despite mixed reviews from critics, the film became the most-watched film on Netflix at the time within 28 days of release, according to Netflix. A spin-off sequel, Bird Box Barcelona, was released on Netflix on July 14, 2023.