Clash of the Titans is a 1981 fantasy adventure film directed by Desmond Davis and written by Beverley Cross, loosely based on the Greek myth of Perseus. Starring Harry Hamlin, Judi Bowker, Burgess Meredith, Maggie Smith and Laurence Olivier, the film features the final work of stop-motion visual effects artist Ray Harryhausen. Co-produced between the United Kingdom and United States, it was theatrically released on June 12, 1981 and grossed $41 million at the North American box office, which made it the eleventh highest grossing film of the year. A novelization by Alan Dean Foster was also published in 1981. A 3D remake of the same name was released by Warner Bros. on April 2, 2010. Plot King Acrisius of Argos imprisons his daughter Danaë, trying to prevent a prophecy that her child will bring about his demise. When the god Zeus impregnates Danaë, Acrisius banishes her and her newborn son Perseus to sea in a wooden chest. In retribution, Zeus kills Acrisius and orders Poseidon to release the last of the Titans, a gigantic sea monster called the Kraken, to destroy Argos. Danaë and Perseus safely float to the island of Seriphos, where Perseus grows to adulthood. Calibos, the spoiled son of the sea goddess Thetis, is betrothed to Princess Andromeda, daughter of Queen Cassiopeia of Joppa; but for committing several atrocities against Zeus, including destroying Zeus' sacred flying horses (except for Pegasus), Calibos is transformed into a deformed, satyr-like creature. In revenge, Thetis transports an adult Perseus to an abandoned amphitheater in Joppa, where he befriends a soldier, Thallo, and an elderly poet named Ammon. Perseus learns that Andromeda is under a curse and cannot marry unless her suitor successfully answers a riddle concocted by Calibos. Zeus sends Perseus a god-crafted helmet from Athena which makes its wearer invisible, a magical sword from Aphrodite, and a shield from Hera. After capturing Pegasus, Perseus follows Calibos's giant vulture carrying off Andromeda's spirit during her sleep to learn the next riddle. Perseus is discovered and nearly killed by Calibos. In the ensuing fight, Calibos loses his left hand, and Perseus loses his helmet. The next morning, Perseus presents himself as a suitor and correctly answers the riddle — that answer being the ring given to Calibos by his mother which is still attached to the amputated hand — winning Andromeda's hand in marriage. Finding that Thetis cannot act against Perseus,