Films - Western
Into the West (TV Mini Series 2005) - IMDb
This is not a documentary but Into the West is a tv mini series that closely follows historical happenings in the Great Plains in the 19th century. It tells the story of two intertwined families, one white and one Native American, and how they change and adapt to rapidly changing conditions. The Lakota language is featured extensively and the series very much feels like Dances With Wolves.