I've read practically nothing at all about that movie in any Big Media outlet. It's like it disappeared down a black hole. You and I know why of course, it depicts (accurately) the brutal world of the Aztecs. This is something very uncomfortable for libs to talk about since it shows that "native" Americans weren't all the peaceful lovers of the earth and other peoples that the libs wished them to be. In fact, it showed them as being like other peoples of the world.
This causes a great deal of disconnect and uncertainty in libs when they cannot blame those evil white Europeans for some crime. Incidentally, the totally non-European Mongols have been estimated to have killed thirty to one hundred million people in the twelve and thirteen hundreds. But you won't see libs condemning them much either. For obvious reasons.
I'm always amazed by those who give the Nazis as examples of efficient mass slaughter. The implication being that mass murder requires advanced technology. At Auschwitz, with enormous expense and effort, the Nazis eventually got up to a maximum murder rate of 24,000 in 24 hours, although even this number may be too high.
Meanwhile, the Mongols, using only primitive edged weapons, routinely killed 100,000+ in a few minutes, certainly less than an hour, after a city was captured.
Just distribute a few bound captives to each of your soldiers. On the signal everybody chops heads and builds a lovely pyramid.
BTW, such practices were by no means unique to the Mongols. They were more or less traditional among all the steppe tribes. The Mongols just inflicted them on a much larger area and more people than anybody else.