Hank Worden, who has a substantial role as the Indian Crazy Bear, also does a cameo appearance as the jailer at the cavalry fort guardhouse; likewise, Harry Landers plays both Grey Wolf and also one of Captain Trask's attachés.
Kirk Douglas did most of his own horse riding and, at one point, broke his nose attempting a stunt that called for him to make his horse fall. Instead of leaning back in the saddle when yanking the horse's head around to the side, Douglas leaned forward and took the full force of the horse's heavy head right in the face.
Average Shot Length (ASL) = 6.8 seconds, fast for an early CinemaScope film.
First feature from Kirk Douglas' then new production company, Bryna, named for his mother
The casting of Onahti (the Indian girl) turned out to be much more difficult than first anticipated. Though there were a number of unsuccessful auditions, it wasn't until Kirk's wife Anne Douglas spotted a model in Vogue magazine that the production knew they had their leading lady. Her name was Elsa Martinelli, an Italian model on the verge of becoming an international star.