Kit Carson (2008)

An illiterate mountain man, Kit Carson was fluent in Spanish and five Indian languages; he twice married Native American women, yet led a brutal war against the Navajo. When the West was a mystery to most Americans, Carson mastered it, and his expertise made him not only famous, but also sought after. Eventually, by helping to spur a migration that would change the West forever, he unwittingly became an agent in the destruction of the life he loved.

Unfortunately the movie Kit Carson is not yet available on HBO Max.