Hercules Unchained (Italian: Ercole e la regina di Lidia [ˈɛrkole е lla reˈdʒiːna di ˈliːdja], "Hercules and the Queen of Lydia") is a 1959 Italian-French epic fantasy feature film starring Steve Reeves and Sylva Koscina in a story about two warring brothers and Hercules' tribulations in the court of Queen Omphale. The film is the sequel to the Reeves vehicle Hercules (1958) and marks Reeves' second – and last – appearance as Hercules. The film's screenplay, loosely based upon various Greek mythology and plays by Aeschylus and Sophocles, was written by Ennio De Concini and Pietro Francisci with Francisci directing and Bruno Vailati and Ferruccio De Martino producing the film.