Erik The Conqueror (aka Gli Invasori) (1961)

Two brothers, heirs to the Viking throne, are separated as children after their father (Folco Lulli) is killed in battle. One, Eron (Cameron Mitchell) is raised as a Viking while the other, Erik (George Ardisson) is found and raised by the British Queen (Francoise Christophe) as her heir. Though on opposite sides, it's inevitable that they eventually find each other. Directed by Mario Bava (BLACK SUNDAY). Although most associated with the horror genre, Mario Bava did a handful of sword and sandal movies (often uncredited) but this is probably his best venture into the genre. Bava is one of a handful of film directors that act as their own cinematographer and his wide screen Dyaliscope images are often very striking, such as the Queen walking through a scarlet sunset. The final siege of a castle is rather a blah, however. With Alice and Ellen Kessler (real life identical twins) playing identical twin sisters, one for each of the brothers.