Atlantis: Milo's Return is a 2003 American animated science fiction film directed by Victor Cook, Toby Shelton, and Tad Stones. It is the sequel to Atlantis: The Lost Empire (2001). The film received a direct-to-video release on May 20, 2003.

Atlantis: The Lost Empire is a 2001 American animated science fiction action-adventure film produced by Walt Disney Feature Animation and released by Walt Disney Pictures. It was directed by Gary Trousdale and Kirk Wise and produced by Don Hahn, from a screenplay by Tab Murphy, and a story by Murphy, Wise, Trousdale, Joss Whedon, and the writing team of Bryce Zabel and Jackie Zabel. The film features an ensemble voice cast that includes Michael J. Fox, Cree Summer, James Garner, Leonard Nimoy, Don Novello, Phil Morris, Claudia Christian, Jacqueline Obradors, Jim Varney, Florence Stanley, John Mahoney, David Ogden Stiers, and Corey Burton. The film is set in 1914 and tells the story of young linguist Milo Thatch, who gains possession of a sacred book, which he believes will guide him and a crew of mercenaries to the lost city of Atlantis.