Up is a computer-animated film produced by Pixar Animation Studios about a cranky old man and an overeager scout who fly to South America in a floating house suspended from helium balloons. It is distributed by Walt Disney Pictures, and premiered by opening the 2009 Cannes Film Festival as the first animated film ever to do so. This is director Pete Docter's (Monsters, Inc.) second film. The film has received overwhelmingly positive reviews, with a rating of 98% on Rotten Tomatoes. Carl Fredricksen, a quiet young boy, meets the tomboy Ellie in her clubhouse (a dilapidated home), discovering together they share the same interest in exploration as their hero, famed explorer Charles Muntz. (Freebase)