Invincible Brothers Maciste, The (1964)

aka's: Gli Invincibili Fratelli Maciste/The Invincible Gladiators

The Maciste brothers (Iloosh Khoshabe and Mario Novelli) come to the aid of a prince (Anthony Steffen) who has been abducted by underground leopard-men. Also stars Claudie Lange. (Partially widescreen).