In Finding Nemo, Coral was Marlin's mate and Nemo's mother. She was shown at the beginning of the movie, and she and Marlin swam down to their sea anemone where there were hundreds of baby clownfish eggs. Marlin then decided to name half the kids Marlin, Jr. and the other half Coral, Jr. However, Coral says that she likes "Nemo" better, so Marlin says that he'll only name one egg "Nemo". When Coral wondered why Marlin was looking at her the way he did, Marlin told Coral how they first met and made Coral laugh so hard that she tried to get away from Marlin by swimming out of the anemone.
When Marlin swam out after her, he saw Coral staring at a barracuda, then told her to get back into the house. Despite Marlin's attempts to get her to go inside their home, she rushed down to protect the children, and the barracuda went after her. Marlin tried to fend the barracuda off, but it slapped the clownfish with its tail and knocked Marlin out.
When Marlin later regained consciousness that night, he discovered that Coral and all but one of their eggs had been eaten by the barracuda Marlin found the lone egg and named it "Nemo", to honor his wife's wish to name one of their children "Nemo".
- In the original storyboard of the film, there was supposed to be a scene where the audience could see Coral and the eggs inside the Barracuda's mouth, but the scene was later deleted, possibly because it might scare young kids watching the movie.
- Coral is the first female Pixar character to die.
- Coral is referenced in the sequel when Dory talks to Marlin and Nemo about missing her parents.