Revealing mistake: In the scene where Themistocles first talks to Queen Gorgo, in the background you can see several extras, one of which is wearing obvious sneakers. (00:18:35)
Continuity mistake: The scene where Artemisia is seeing Xerxes off into the desert for his transformation is a flipped shot, note the two moles on her forehead. (00:10:30)
Factual error: In the third scene, where the woman is being dragged away, you can see the incisions from breast enlargement surgery at the bottom of her breasts, hardly fitting the time period. (00:01:25)
Continuity mistake: A brave captive is dragged to Artemisia who is eating an apple. It alternates between being green or red throughout the scene. (00:21:35)
Continuity mistake: When Artemisia is fighting to the death near the end she switches between wearing fishnet tights and having bare legs.