<Tr> <Th> Budget </Th> <Td> $175 million </Td> </Tr> <Tr> <Th> Box office </Th> <Td> $735.1 million </Td> </Tr> <P> Up is a 2009 American 3D computer - animated comedy - drama adventure film produced by Pixar Animation Studios and released by Walt Disney Pictures . Directed by Pete Docter, the film centers on an elderly widower named Carl Fredricksen (Ed Asner) and an earnest boy named Russell (Jordan Nagai). By tying thousands of balloons to his house, Carl sets out to fulfill his dream to see the wilds of South America and complete a promise made to his late wife, Ellie . The film was co-directed by Bob Peterson, with music composed by Michael Giacchino . </P> <P> Docter began working on the story in 2004, which was based on fantasies of escaping from life when it becomes too irritating . He and eleven other Pixar artists spent three days in Venezuela gathering research and inspiration . The designs of the characters were caricatured and stylized considerably, and animators were challenged with creating realistic cloth . The floating house is attached by a varying number between 10,000 and 20,000 balloons in the film's sequences . Up was Pixar's first film to be presented in Disney Digital 3 - D . </P>

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