Soldier Blue [DVD] [1970]

Violent anti-racist Western, based on events during the 1864 Sand Creek Massacre. A naive cavalry officer (Peter Strauss) and a resourceful young woman (Candice Bergen) survive a Native American attack and have to make their way home through the wilderness. As they face the hardships of the journey, the couple fall in love, only to witness a horrific bloodbath as the U.S. Cavalry takes revenge upon their enemy, in a battle that became notorious for its brutality.