Hercules the Invincible (Italian: Ercole l'invincibile) is a 1964 Italian Sword and Sandal film directed by Alvaro Mancori and Lewis Mann and starring Dan Vadis. It is the first of two directing credits for cinematographer Alvaro Mancori. The film was later released to American television retitled Son of Hercules in the Land of Darkness as part of the Sons of Hercules TV syndication package.