Other mistake: In the battle at Gaugamela scene where Cleitus jumps off his horse to help Alexander in the battle, Cleitus is seen cutting the head off a barbarian and throwing it at another. Two seconds later he is seen swinging that same head back and forth.
Alexander (2004)
1 other mistake
Directed by: Oliver Stone
Starring: Anthony Hopkins, Colin Farrell, Angelina Jolie, Val Kilmer, Jared Leto, David Bedella, Jessie Kamm
Revealing mistake: Towards the beginning of the movie, young Alexander tames a horse and then jumps on the horse and rides off. He is supposed to be riding bareback, but in one of the shots from a distance, you can tell that the actor's feet are in stirrups.
Olympias: You are everything Phillip was not. He was coarse, you are refined. He was a general, you are a king. He could not rule himself. And you shall rule the world.
Trivia: Many details are based on Plutarch's "Life of Alexander." These include: Alexander taunting Philip for being too drunk to walk from one couch to another, Bagoas' dance Hephaestion not following the medic's dietary restriction, eating poultry, in particular Alexander and Hephaestion reading letters from Olympias together; Alexander using his ring to signal that the content was to remain confidential, the taming of Bucephalus Phillip's assassination, and Olympias keeping snakes in her bedchamber.