Piglet's Big Movie is a 2003 American animated musical adventure comedy-drama film produced by the Japanese office of Disneytoon Studios and released by Walt Disney Pictures. The animation production was by Walt Disney Animation Japan, Inc. with additional animation provided by Gullwing Co., Ltd., additional background by Studio Fuga and digital ink and paint by T2 Studio. The film features the characters from the Winnie-the-Pooh books written by A. A. Milne and E. H. Shepard and is the third theatrically released Winnie the Pooh feature, after The Many Adventures of Winnie the Pooh and The Tigger Movie. In this film, Piglet is ashamed of being small and clumsy and wanders off into the Hundred Acre Wood, leading all of his friends to form a search party to find him.

Piglet's Big Movie was released on March 21, 2003, to generally positive reviews from critics and grossed $62.9 million against a budget of $46 million.