For me it was 10,000 BC which is a movie that is sadly stupid on so many, many levels. Cavemen hunting woolly mammoths are attacked by horsemen (riding up into snowy mountainous terrain) wielding swords (not invented for thousands of more years) who take slaves to what appears to be Ancient Egypt (!!!). The horsemen ride through a desert (the horses would DIE) and bring the mammoths with them for use as beasts of burden (again, woolly mammoths. In a desert) to build the pyramids? Its not very well explained what they were for except moving big blocks of stone. Also, what appears to be
alien overlords run the slavers.
Anachronisms aside, the movie fails on geography as well; the heroes travel from a mountainous tundra to a thick rainforest and then to desert before winding up on a flood plain. That's pretty much the better part of a continent to travel and they do it on foot. Biology also gets the stinker since there are saber-toothed tigers (save for a few exceptions, they long died out before man learned to walk upright) and one in particular that inexplicably refuses to eat the hero because he saved it once.
Even common sense takes a holiday, the plot is not even plausible. In earlier scenes, its established that the hero's people can't speak the language of other humans (an agricultural society. Again living mostly in the desert and scrub land) so he needs an interpreter who can speak both tongues thanks to the serendipitous visit of his father many years ago. In one scene, the hero gives a rousing speech to the slaves with no interpreter and yet somehow, miraculously, everyone from various tribes can understand him perfectly well in some bizarre reversal of the Tower of Babel. For some strange reason, the bag guys really roam far in search of slaves instead of enslaving all the nearby tribes. Then when the dust settles, the hero brings back grain to transition his people from hunter-gatherers to civilized men. All well and good except that he received what appears to be maize or corn (from the Savannah? Somehow?) which can't grow in their tribal lands very well.
TL
R? The movie is an equal opportunity insult to your intelligence regardless of whether your grounding is in the hard sciences or the humanities. It beats your suspension of disbelief with a lead pipe by having so many elements out of place and so many violations of simple logic and common sense that its impossible to take the movie seriously. As icing on the cake some (most) characters don't speak in modern languages (I would hazard to guess its either an exotic or constructed language) so be prepared to read a lot of subtitles.
On the other hand its an
excellent teaching tool (asking students to name errors produces less of a term paper and more of a thesis) and hilariously funny in the same way that a man wearing cabbage as a hat and a leek up his orifices singing "Barbie Girl" in a warbling bass is funny. You're not laughing with the movie, you are laughing at it.