Goofs

After Hercules' fight with the wolves, he is bitten in numerous places (neck, leg, arm), yet when he stands after the statue falls, there is no blood on his neck nor are there are bite marks. [He also showed a remarkable lack of pain]

When Ergenia asks Hercules' team for "the truth", a soldier can be seen in the background wearing the distinctive leather armor which is not distributed by Iolaus until the following scene.

When Hercules' was being charged by the villager, he clearly breaks the tip off Atalanta's arrow. After punching the villager, the arrow embedded in his forehead has a longer shaft than was broken originally.

In the movie they say Hercules is great like Achilles and other famous warriors but Achilles came after Hercules in ancient mythology and Achilles was supposed to be a descendant of Hercules.

In the prologue, the Nemean lion's head alone outsizes Hercules entirely, yet he later wears the head as a helmet and it is relatively small. The prologue was told from the subjective viewpoint of Iolaus, who is later shown to be fond of telling tall tales and stretching the truth about Hercules' past.

The movie features numerous characters from mythology and legend, using the Greek names. Except for the title character who is referred to by his Roman name Hercules rather than Heracles. Nearly all movies do this because his Roman name is much more recognizable in pop culture and is a sensible marketing choice. It can be considered a translation of what the characters were really saying.

In the fight of Mount of Asticus, in the final encounter between Hercules and the villain leader, Hercules lifts the horse and throws on ground and curses using 'F...' word. This seems to be a mistake as the invention of this word is not connected to any mythology.

Speaking English is not connected to any mythology, either. The F-word is a translation of whatever language they are speaking.

After Hercules saves his companion from a flaming spear, he throws a soldier down a hole. When said soldier hits the rocks before falling down, you can see the prop rocks shrinking under the stunt actor's weight.

Although set back in 358 B.C., the women have shaved legs and armpits.

They make swords and spears. If there's a blade, shaving will happen. It wasn't invented by Lady Gillette.

Some close-ups of Hercules facing Rhesus' army have been flopped. The rectangular Thracian shields have a space top-right for a spear but in at least two shots the soldiers behind Hercules have a space on the top-left of their shields.

A delivery of armour is made to the army but if you go back a bit some soldiers can be seen already wearing it.

Rhesus and his men all have stirrups, which were not used in Europe till well after the fall of the Roman Empire.

The opening tells us that the date is 358 BC, yet the cultures and governments depicted in the movie are typical of a much earlier time, possibly even 1358 BC. One of the most telling details is that Eurystheus is called the King of Athens, an office abolished at least 400 years earlier when Athens became a republic.

After the first fight, Hercules receives medical treatment for his stab wound. He has a modern tattoo on the left side of his chest which has been covered by make-up.

The Warrior Spirit is hardly modern.

The geographical names on the maps are written in a type of script that only appeared several centuries later, well into the Middle Ages.