 It is based on the 1908 Spanish novel, which was critical of bullfighting, "Blood and Sand" ("Sangre y arena"), by Vicente Blasco Ibáñez.The supporting cast features Anthony Quinn, Lynn Bari, Laird Cregar, J. Carrol Naish, John Carradine and George Reeves.Rita Hayworth's singing voice was dubbed by Gracilla Pirraga.