First movie coming to my mind TROY (2004) lol Every action/intentions of the characters are hilariously modern from Helen to Hektor and Achilles. Also some kind of war movie if you want so or at least a movie about a famous war (I don't think the movie follows any historian agenda nor mythology at all). Now it's just a fun aesthetic movie to watch.
That's the crux of the matter, isn't it? For generations to come, we wonder how the hell did these terrible events even happen and how managed those "leaders" people not only to follow them but to carry out such terrible deeds? There was this experiment -I think of a US teacher called THE WAVE from 1981- showing his students how easily our species can be fooled even with all the knowledge of WWII. You probably heard of it:
https://en.wikipedia.org/wiki/The_Wave_(1981_film)
I mean we still live in a time of wars. Less have changed for the better, some would claim we are moving backwards right now.
I really can't say. I haven't seen most of them, and if I have, it was in school a long time ago, as some kind of learning experience that I barely remember because I had no interest in it at all.