In this big-budget historical adventure, Tyrone Power stars as Pedro De Vargas, a young and impetuous nobleman in 16th Century Spain. Pedro helps to free a slave who belongs to Diego De Silva (John Sutton), but this proves to be a mistake, as Diego is one of the leaders of the Inquisition. Diego soon brands Pedro a heretic, puts his family behind bars, and subjects his 12-year-old sister to torture so horrible it kills her. An outraged Pedro plots his escape, with the help of his friend Juan Garcia (Lee J. Cobb) and hot-blooded peasant girl, Catana Perez (Jean Peters). Pedro and his friends help his parents make their way out of Spain, and he soon joins forces with Hernando Cortez (Cesar Romero), who has an ambitious plan to sail to the new world in search of gold. However, a vengeful Diego uses his powers to foil Cortez, and when Diego is murdered, Pedro becomes the key suspect in the crime.
Captain From Castile
was shot on location in Morelos, Mexico, where the active volcano Paricutin slowed production, causing delays that expanded the film's budget to a then-extravagant $4.5 million.