Harry Hamlin (TV's "L.A. Law") portrays the Greek hero Perseus who battles the deadly Medusa in order to save a beautiful princess from the monstrous Calibos. Roger Ebert calls Oscar-winner Ray Harryhausen's special effects "astonishing." With Academy Award-winners Laurence Olivier ("Wuthering Heights", "Marathon Man") and Maggie Smith ("The Pride of Miss Jean Brodie") and a cast rounded out by the seductive Ursula Andress, Claire Bloom and Burgess Meredith ("Rocky").