Inside Out is a 2015 American 3D computer-animated comedy film produced by Pixar Animation Studios and released by Walt Disney Pictures. The film was directed by Pete Docter and co-directed by Ronnie del Carmen, with a screenplay written by Docter, Meg LeFauve, and Josh Cooley, adapted from a story by Docter and del Carmen. The film is set in the mind of a young girl named Riley (Kaitlyn Dias), where five personified emotions—Joy (Amy Poehler), Sadness (Phyllis Smith), Anger (Lewis Black), Fear (Bill Hader), and Disgust (Mindy Kaling)—try to lead her through life as she and her parents (Diane Lane and Kyle MacLachlan) adjust to their new surroundings after moving from Minnesota to San Francisco.
Docter first began developing Inside Out in 2010, after noticing changes in his daughter's personality as she grew older. The film's producers consulted numerous psychologists including Dacher Keltner from the University of California, Berkeley, who helped revise the story by emphasizing the neuropsychological findings that human emotions affect interpersonal relationships and can be significantly moderated by them.
After premiering at the 68th Cannes Film Festival on May 18, 2015, Inside Out was released in North America on June 19, 2015, accompanied by the short film Lava. The film was praised for its concept, screenplay, subject matter, Michael Giacchino's musical score, and the vocal performances (particularly those of Poehler, Smith, Black, and Richard Kind). The film grossed $90.4 million in its first weekend, making it the highest opening for an original title at the time, accumulating over $857 million in worldwide box office revenue in 2015, making it the seventh-highest-grossing film of 2015. The film received several awards, including a BAFTA Award, Golden Globe Award, Critics' Choice Award, Annie Award, Satellite Award, and Academy Award for Best Animated Feature.