This might be a long shot, but I hope you all can help. The only detail of the movie that I remember takes place in a Saloon where an actress is singing a song whose lyrics contain names of several native american tribes. It was a catchy jingle and I'd love to know movie title to see the rest of the film.
Sounds like the scene in "Annie Get Your Guns" where Chief Sitting Bull makes her his daughter. There are a couple of versions but the one with Betty Hutton (1950) is by far the best. See if this might be the movie you are thinking of. She sings the song "I'm an Indian Too" which lists Seminole, Navajo, Kickapoo, and Sioux in the first line alone. LOL