Finding Nemo (2003 )

Life in the Great Barrier Reef is full of dangers when you are a tiny fish. When Marlin, an overly cautious clown fish, watches his son get scooped up by a diver, he must put aside his fears of the ocean and leave the safety of his coral enclave to find Nemo. Buoyed by the companionship of Dory, a forgetful but relentlessly optimistic fish, Marlin finds himself an unlikely hero in a seemingly impossible land-and-sea rescue.