This film has good acting, well-scripted dialogue and high production values. And that is it! It's a good starting point, but it goes downhill from there. One soon wonders whether there will be anyone left to root for. The intended protagonist has come from New York, wound up as wife of a Cheyenne chief (How did THAT happen?), is no longer married to him (How did she manage it?), and is on the way to marry for money, saying so herself! Rummaging around the corpses after a massacre, she cares more for her lost yellow hat than for the vast loss of life. Who could fall in love with her? Well, Soldier Blue does, AFTER deciding that she is a traitor.
The plot sucks, always showing or saying one thing, then pushing views based on the opposite, which makes this come across as deserving failure even as a mere propaganda film.
Let the film's story speak for itself first, ignoring the question whether it is true for the moment:
Is this a film about the Cavalry organising a massacre of a peaceful village (as described at the end)? Is it a film about the Cavalry organising a massacre of a village that just organised a massacre of a Cavalry detachment (as shown at the beginning), taking its gold and trying to use it to build up its firing power for further violence?
Why couldn't the survivors follow the easy trail back to camp, if the villagers were peaceful? How would the villagers have acted, if the rifles had actually arrived? Were they better than those from the other tribe, who murdered their own comrade after the Cavalry soldier spared his life (against the protagonist's explicit demand!), having defeated him in single combat?
This much is clear: A lot of people acted very badly. Unfortunately, that seems to be the norm in most places at most times. Which side was worse? It's probably too late now to find out. It may have been too late in 1970. I don't demand that the film makers tell me a true story, when even they might be at a loss to establish all the facts.
But if they tell me one story, then I expect them to be committed to all of it, instead of presenting conclusions that simply don't match what they have just shown me.
There is talk about Cheyenne land. Were they pueblos? If so, they certainly owned land, even if they weren't the first occupants. In New York, the British replaced the Dutch. Not far from New York, the British took land from the Dutch, who had taken it from the Swedish, who weren't the first occupants, either … The film doesn't show the Cheyenne as pueblos but as living in tents, which suggests nomads. Did nomads ever even try to acquire land? Don't they just mean to move on?
I want clarity, not maximum graphic violence designed (at best) to bring about an emotional reaction. Showing a naked woman having her breasts cut off doesn't advance my understanding of American history. Does it embellish a massacre that really doesn't need embellishing — and give pornography a bad name at the same time? What does this film do for what little history there can be? Does it put a massacre into a fictional context to diminish it, when it doesn't need that either? Fighting forces have always been good at bringing out the inner serial killer in a frightening proportion of people. The only thing that can be said for this film is that at least it doesn't glamorize the violence it shows. That is not enough to get a third star from me.