The Chant of Jimmie Blacksmith (1978)
In Australia at the turn of the 19th century a part aboriginal man Jimmie, is torn between two different cultures. One being the traditions of his people and the other is adopting the white customs. Though, the racism he confronts from his white employers, he finds it unbearable trying to fit in and commits a massacre on a white family.
This is an adaptation of Thomas Kelly's stimulating novel of the same title. That's actually based on real events. Director Fred Schepisi vision of the story is totally stunning in capturing the detail of the Australian landscape and the friction between two cultures, with such confronting and stirring context and some downright absorbing and strong performances. (IMDB lost-in-limbo)