Yeah, I'm a few years behind the curve with regard to cinema.
Also, does a 3YO movie really need "spoiler alerts?" Well, consider yourself alerted.
Weird
Apocalypto came out in 2006 and is a Mel Gibson baby. It made pretty good money for him, though not as much as The Passion of the Christ.
I read elsewhere that this was a "deeply weird movie." Weird in that all the dialog is in Mayan and all the characters are played by American indians of some sort. I can't dispute those facts, because they are true. The slice of the audience able to follow the dialog without aid of the subtitles is minuscule. I can't see too many showings of Apocalypto in the jungles of the Yucatan.
Plot
The basic plot revolves around a hunter in the jungle named Jaguar Paw. His village is attacked and the adults not killed are taken into captivity, while the young are killed or left to starve. JP manages to hide his pregnant wife & child in a pit, but she has no way out. The rest of the movie revolves around JP escaping and rescuing his wife & child. In essence, it is a chase movie stripped of most human artifice and is CGI-free.
JP & his village have been captured by the better-organized Mayan tribes that managed to build the stone pyramids in Central America. They have a specific warrior class that specializes in finding captives to sacrifice to their blood-thirsty gods. The men are prepared for sacrifice and several have their hearts cut out by the priests until a solar eclipse is seen as a sign that the gods have been appeased.
JP & the remainder yet to be sacrificed are then "disposed" of. IOW, they are to be killed for the pleasure of their captors. JP escapes while they are toying with him and he manages to kill the son of the warrior band's leader, causing the band to chase him back toward his wife & child.
Indian Culture
Apocalypto is one of the very few films to take indian culture and activity seriously (Black Robe is another). Most times, it is glossed over and idealized. Well, Apocalypto illustrates just how the "advanced" civilizations of the Mayas & Aztecs would look, as well as the small hunter-gatherer bands that would surround it. The technology is Stone Age. Relations between differing peoples is brutal and very dog-eat-dog. There is no Western assumption/foundation of human rights or dignity. Human kindness might be felt & practiced toward you & yours, but there is no moral problem with exploiting the "other" in every conceivable way.
There is no question in my mind that the Spanish who came upon the images and evidence of meso-american human sacrifice & other vile practices thought they were witnessing the work of Satan and the evil Old Testament gods. The practices were close enough to those of the Canaanites in honor of their Baalim that any literate conquistadors could easily feel justified in going after the Aztecs & Mayans the same way the Israelites went after the Canaanites.
Destruction, Revelation, Beginnings
"A great civilization is not conquered from without until it has destroyed itself from within."----Will Durant
There end up being several "apocalypses" in Apocalypto, only two of which are explicit: the quick one of JP's village and the slower one of Mayan civilization. One other that is implied is the Spanish discovery of the land and the subsequent conquest.
The Durant quote is directly applicable to the Mayan civilization, as it pretty much destroyed the local jungle to produce the lime to build their pyramids. It was a thoroughly decadent civilization just waiting to be knocked off.
The flip side of the destruction side of apocalypse is the idea of the new beginning. The end of Mayan civilization is the soil in which a new civilization grows in the New World.