Up is a 2009 American animated comedy-drama adventure film produced by Pixar Animation Studios and released by Walt Disney Pictures. The film was directed by Pete Docter, co-directed by Bob Peterson, and produced by Jonas Rivera. Docter and Peterson also wrote the film's screenplay and story, with Tom McCarthy co-writing the latter. The film stars the voices of Ed Asner, Christopher Plummer, Jordan Nagai, and Bob Peterson. The film centers on Carl Fredricksen (Asner), an elderly widower who travels to South America with wilderness explorer Russell (Nagai) in order to fulfill a promise that he made to his late wife Ellie. Along the way, they meet a talking dog named Dug (Peterson) and encounter a giant bird named Kevin, who is being hunted by the explorer Charles Muntz (Plummer), whom Carl had idolized in his childhood.

Jonas H. Rivera is an American film producer. He produced the animated films Up (2009), Inside Out (2015), and Toy Story 4 (2019), all of which won the Academy Award for Best Animated Feature. Rivera is an alumnus of San Francisco State University and has worked with Pixar Animation Studios since 1994.