The first film, Percy Jackson & the Olympians: The Lightning Thief (2010), was directed by Chris Columbus and was released on February 12, 2010.
The second installment, Percy Jackson: Sea of Monsters, was originally intended to be released in March 2013 but was instead pushed back to August 7, 2013, and was directed by Thor Freudenthal.
In the first film, Percy must go on a quest to save his mother from the underworld and prove his innocence when he is accused of stealing lightning from Zeus.
The second film revolves around Percy's escapades as he must retrieve the legendary Golden Fleece from the Sea of Monsters, or the Bermuda Triangle, which is the only thing that will save the camp from the forces of darkness.
Percy Jackson, son of Greek god Poseidon, discovers he has a half-brother, Tyson a Cyclops, and embarks on a journey with his friends to retrieve the Golden Fleece to save a magical tree containing the spirit of Zeus's daughter Thalia Grace who died at the gates of Camp Half-Blood while saving Annabeth, Luke and Grover.
Rick Riordan, the author of the book series, has mentioned in numerous interviews that he has never seen the films, to keep them from influencing the way he views the characters.