Factual error: When Ulysses opens his mouth while speaking, modern dental fillings are in his teeth.
Revealing mistake: When Tony and Doug are captured by the Greeks, the lead Greek soldier points his sword to Troy. The "Troy" shown is a modern still picture of the ruins of the Greek Acropolis and surrounding structures, complete with a modern blue and white vehicle that looks like a bus in the lower left hand part of the picture.
Continuity mistake: The distance between Ulysses and Epeios goes from distant to close together as the shots change.
Factual error: The battle scenes show the Greek and Trojan cavalry troopers equipped with stirrups on their saddles. The stirrup would not be used until nearly 1,400 years later.
Factual error: This is one of two episodes in the series where a WW2-era German MP38/40 submachine gun was used by American forces (Master Sergeant Jiggs, in this episode) rather than an American weapon such as a Thompson submachine gun.
Factual error: When Doug and Tony recount the causes of the Trojan War, they mention three Roman goddesses - Venus, Juno, and Minerva - instead of using their Greek names - Aphrodite, Hera, and Athena.
Continuity mistake: Jiggs goes back with a bag of grenades and a machine gun. He fires the gun, but when he is jumped on by the Trojan, the bag is gone. An object which may be a bag is lying on the ground, but is not the one he brought. No further mention is made of the grenades. (00:21:20)
