On September 24, 1894, Thomas Edison filmed members of the Sioux tribe performing a Buffalo Dance. This is one of the earliest films to feature Native Americans.
Art & Photography Companion: American West Collection
According to Wikipedia:
The film was shot in Thomas Edison's Black Maria Studio on a single reel, using standard 35mm gauge, and features five Sioux Indian veterans of Buffalo Bill's Wild West show wearing traditional costumes and war paint: Hair Coast, Last Horse and Parts His Hair dance in a circle, while Pine and Strong Talker provide the drum beat.
The Buffalo Dance, also known as the Bison Dance, is an annual dance festival of many North American Plains tribes. It traditionally coincided with the return of the buffalo herds, and included a feast and a dance with men wearing buffalo and other animal skins.