On account of this film, which George Lucas found to be better than its predecessor, he hired Irvin Kershner to direct Star Wars: Episode V - The Empire Strikes Back (1980).
First major film role for Gale Sondergaard, after she was blacklisted for refusing to testify before the U.S. House of Representatives Un-American Activities Committee in 1951.
Reviews for the film criticized it for its scarcity of Native American actors in the cast, and for portraying a Sioux tribe requiring a white man's aid to defend itself.
Mexican filming locations were used, because the Mexican terrain resembles that of South Dakota, but has a milder climate.
Director Irvin Kershner has said that of all his films, this one has the best score (by Laurence Rosenthal), as it plays like a small scale opera.