SpongeBob's Atlantis SquarePantis is a 2007 made-for-television musical comedy film directed by Andrew Overtoom. The film stars Tom Kenny, Bill Fagerbakke, Rodger Bumpass, Clancy Brown, Carolyn Lawrence, and Mr. Lawrence. The film originally aired on Nickelodeon in the United States on November 12, 2007, following a 12-hour-marathon of SpongeBob SquarePants episodes. The series follows the adventures of the title character in the underwater city of Bikini Bottom. In the film, SpongeBob (voiced by Kenny) and Patrick (voiced by Fagerbakke) discover an ancient medallion that help them get to the lost city of Atlantis.