In the 2010 film Percy Jackson & the Olympians: The Lightning Thief, Percy’s mother is Sally Jackson.
Sally Jackson is Percy’s human mother and an important emotional anchor in the film. Percy is the son of the Greek god Poseidon, making him a demigod, while Sally remains a mortal character who understands more about the mythological world than Percy initially realizes.
The film is based on Rick Riordan’s novel The Lightning Thief, the first book in the Percy Jackson & the Olympians series. Its plot includes Greek gods, monsters, demigods, and mythological objects, but it does not retell Hesiod’s Pandora story directly.
The reference to Pandora in Percy Jackson’s wider fictional universe can lead to confusion with characters from the film. Annabeth Chase is Percy’s demigod ally, Clarisse La Rue is a daughter of Ares, and Thalia Grace is another major demigod in the series. None of them is Percy’s mother.