There were a lot of exellent movies made from the late 1930's - present day about the injustice done to Native Americans. Many of them had Native American actors and actresses. This movie is another good about the Cheyenne.
That said, what we really need is a movie about the Governor of South Dakota and the Native Americans who banned her from their reservations, which is a big chunk of land that governor can't visit in her own state, LOL!
She defamed Native Americans by accusing them of working for the Mexican drug cartels, when she probably should have demanded funds and FBI experts to stop Native American women from disappearing and/or being murdered. It's long past the time investigators find out who is responisble for those crimes.