The SpongeBob SquarePants Movie IV: The Cloonbob Saga (also known as SpongeBob SquarePants 4 or simply IV) is a 2023 animated feature based off the SpongeBob SquarePants television series. Viacom fast-tracked development of The Cloonbob Saga after the box office and critical success of the previous film, Battle of the Fireworks. Due to scheduling conflicts involving his role on Clarence, Tom Kenny decided not to reprise his role as SpongeBob; instead, Joel Schumacher, director of the film, cast George Clooney as SpongeBob. This replacement caused a major rewrite of the plot; following the rewrite, the majority of the SpongeBob cast was replaced with cast members of Batman and Robin.