Battle of Thermopylae at Thermopylae, the Persians sent a mounted scout to reconnoitre. The Greeks allowed him to come up to the camp, observe them, and depart. Xerxes found the scout's reports of the size of the Greek force, and that the Spartans were indulging in callisthenics and combing their long hair, laughable. Seeking the counsel of Demaratus, an exiled Spartan king in his retinue, Xerxes was told the Spartans were preparing for battle, and it was their custom to adorn their hair when they were about to risk their lives. Demaratus called them "the bravest men in Greece" and warned the Great
The 300 Spartans the surviving Spartans refuse Xerxes's demand to give up Leonidas' body. They are then annihilated by arrowfire. After this, narration states that the Battle of Salamis and the Battle of Plataea end the Persian invasion, which could not have been organized without the time bought by the 300 Spartans who defied the tyranny of Xerxes at Thermopylae. One of the final images of the film is the memorial bearing the epigram of Simonides of Ceos, which is recited. The battle scenes were shot near the village of Perachora, on the mainland side of the Corinth Canal, as it was impossible