Revealing mistake: When the body of Achilles lies on the pyre in the close-up, although the fake body has a similar appearance to the real Achilles, some things are different, such as the body does not have the distinctive circular scar on the left upper arm as Achilles did. (02:31:40)
Factual error: More than once the sun is seen rising over the sea. But that would be impossible, since the sun rises in the east and the sea around Troy is in the north and west, not in the east.
Continuity mistake: After Hector stabs Ajax blood dribbles from Ajax's mouth and lands on the sand. However, once Ajax breaks the spear in his stomach and continues fighting, this area has no blood on it.
Revealing mistake: Achilles is hit with the final arrow that Paris lets loose, and he drops down to his knees. As he kneels on the grass his left ankle and foot are perfectly visible, and the arrow in his ankle/foot is unequivocally gone! (Visible on VHS.)
Continuity mistake: When Achilles first starts fighting on the beach of Troy he is holding his shield with his left hand. Later in the fight he switches to his sword and is able to swing his shield onto his back because of a leather strap around his neck and shoulder. There was no strap around his neck or on his shield when he was fighting earlier.
Continuity mistake: Hector's sword slice,s Achilles's armor but the one shot shows the hit much higher up near the right shoulder than when we see a close up view and the cut is down by his ribs.
Factual error: Probably the most common mistake in all the ancient warfare movies like Troy. The thick leather armour that soldiers wear is almost impossible to pierce with such crudely sharpened swords but they always seem to pierce the armour with effortless ease.
Continuity mistake: Menelaus' head rotates between shots of him saying "May the gods keep the wolves in the hills and the women in our beds" when at Sparta.
Factual error: At least one riding pad includes a pair of visible stirrups - not invented until sometime in the fourth century A.D.
Revealing mistake: The dawn after the Trojans have retaliated against the Greeks with their fiery assault on the beach, a light filter was used to make a midday shoot appear as though the sun had not fully risen yet. This is evidenced by two things. First, the shadows are not as "deep" as they would be at that time of day. All the details that shouldn't be visible at dawn are perfectly defined, it's just not bright. Second, the fires that still burn should be radiating a bright orange glow. Instead, they are just as dimmed as the rest of the light.
Revealing mistake: When Achilles stabs Hector, you can actually see the sword vanish from Achilles hands just before the shot switches to the side view of the killing.
Continuity mistake: When Briseis is about to kill Achilles he turns her over and his hand slids down to the edge of her dress and then up her leg to her shoulder. However in the next shot his hand is only at her waist and slids up to her shoulder again.
Continuity mistake: The position of the three ropes that hang on the horse's head vary, between when it is first seen on the beach, when it is pulled into the city, and when it is finally placed outside Poseidon's temple. Because they are wrapped around its head, there's no way that they'd be able to move.
Factual error: Mycenae was located far inland, instead Tiryns was at that time a coast citadel city much like Mycenae. Thus the fleet of Agamemnon would have departed from there. Also Sparta never had a port.
Factual error: Most equipment used by the Greeks, such as the large round shields and Achilles helmet, is from the Classical Period (5-4th centuries BC). At the time when the epic is set, the Greeks used small bowl-shaped helmets and light leather shields shaped like the number 8.
Other mistake: During the first shot of the 1000 ships, oarsmen can be seen rowing, but their oars are not disturbing the water. Yet as they approach the beach, the shot is from the same distance and now splashes can be seen.
Factual error: When the Greek leaders are lining up to offer gifts to Agamemnon, one of them is carrying a red-figure vase shaped like a submarine. Red-figure pottery (made of red clay with a black glaze, from which lines and shapes are removed to make red images) was not made until the fifth century BC.
Revealing mistake: When we fly over the beach and see all the ships with the arriving troops, some running ashore, the CGI men look like they're running on the water's surface rather than through it, as they're making no splashes.
Other mistake: After the battle in front of the gate of Troy, the field is cleaned. This includes every scrap of flesh, every drop of blood, every footprint, and even some grass is replaced as is seen when Achilles rides up on his chariot to challenge Hector. This mistake cannot be explained by saying that the Trojans are shown cleaning the battlefield because it would take weeks even months to do that.
Revealing mistake: When the soldiers of Greece are collecting the wood for the Trojan horse, you see bits coming of the wood, revealing the white Styrofoam used to make the wood.
Answer: He doesn't yell any words, just an expression of anguish over his brothers death.