1. Trojan War Duration: The movie condensed the Trojan War, which is believed to have lasted around ten years according to Greek mythology. The movie shortens the timeline to a shorter duration.
2. Achilles and His Heel: The famous vulnerability of Achilles, where he was susceptible to being killed only through his heel, is not found in Homer's Iliad. It was a later embellishment to the myth.
3. Helen's Characterization: The movie portrays Helen as a somewhat unwilling participant in the events, being abducted or enticed to leave with Paris against her will. In the traditional myths, Helen's role is more ambiguous, with some depictions suggesting she willingly left with Paris.
4. Historical Timeline: The film's depiction of the events doesn't align with the actual historical timeline. It compresses different periods of time into a shorter timeframe.
5. Mythic Elements: The movie includes supernatural and divine elements, such as gods directly intervening and influencing events, which are characteristic of Greek mythology but are not necessarily indicative of historical accuracy.
6. Absence of Key Characters: Certain important characters from the original myths, such as the Greek hero Diomedes and Trojan warrior Aeneas, are absent or have minor roles in the movie.
7. Battle Scenes: The film employs dramatic and stylized battle sequences that deviate from historical tactics and weaponry used during the Bronze Age.
While Troy offers entertainment and compelling storytelling by drawing upon ancient myths, it should not be taken as a direct representation of historical events. It's a blend of fact, fiction, and creative interpretation for cinematic purposes.