SpongeBob SquarePants Season 4 Episode 7 Enemy In-Law - Mermaid Man and Barnacle Boy: VI The Motion Picture >After seeing a preview of a Mermaid Man and Barnacle Boy film that will not include the real heroes, SpongeBob and Patrick set out to make their own film, using the real Mermaid Man and Barnacle Boy, and with Pearl in a starring role. They also recruit some of their friends to help out, but run into many setbacks. Finally, SpongeBob and Patrick present their movie at the Krusty Krab and the fan club attends. The end result is a poorly edited, 1-minute long, low-quality film that disappoints fans of Mermaid Man and Barnacle Boy, but the heroes themselves are quite proud of it regardless.