Marlin and Dory – Finding Nemo (2003)

Odd couple Marlin and Dory don't necessarily seem like a compatible team, but together they conquer the ocean and manage to find Marlin's son Nemo. Overprotective Marlin ends up having to depend on the help and friendship of Dory when Nemo is taken by scuba divers. Dory, as friendly, caring and hospitable as she is, suffers from short term memory loss. But it's her exceptional optimism and ability to "just keep swimming" that assists in reuniting father and son, despite a close encounter with jellyfish.