Up is a American computer-animated comedy-adventure film produced by Pixar Animation Studios and distributed by Walt Disney Pictures. The film premiered on May 29, 2009 in North America and is the first animated film to open the 2009 Cannes Film Festival. The film was released in the United Kingdom on October 9, 2009.

Up is director Pete Docter's second feature-length film after Monsters, Inc., and features the voices of Edward Asner, Christopher Plummer, Bob Peterson, and Jordan Nagai. It is Pixar's tenth feature film and the studio's first to be presented in Disney Digital 3-D, and is accompanied in theaters by the short film Partly Cloudy. The film was also shown in Dolby 3D in selected theaters.