The title of Pharaoh, which derives from the Egyptian for 'Palace,' was not introduced until at least 1,300 years after the time in which this film is set.
Throughout the movie, the palace does not appear to be far from the Pyramids. However, in the latter part of the movie, Pharoah Khufu says he is going to ride to Luxor, the location of his palace, from the site of his raid. Luxor is about 400 miles from the Pyramids. At the time of the building of the Pyramids, the capital was at Memphis (near modern-day Cairo). Luxor didn't rise to prominence until several hundred years after the building of the Pyramids.
Snakes can't hear music except for strong low-frequency sounds (sensing the vibrations). So, Nellifer's plot to use a deadly cobra 'drawn' to a small flute's (high-pitched) music is bogus.
Due to the temperature of Egypt it was customary for women to shave their heads and wear wigs of either human hair or woven wool on fine skull caps. The women did not have lovely flowing hair of their own.
When Khufu battles the bull, closeup shots show bull horns that are much larger than the actual bull's horns seen in the wide shots. The closeups used a fake bull head, whereas the wide shots were achieved with stuntmen and a real animal.
The scene which shows men being thrown to the crocodiles - they are really American alligators which have never been native to any part of Africa.
When the architects are demonstrating the mechanism they intend to use in the tomb, the boy starts sand running out on one side of the model, and it starts descending. However a stone held up by four columns cannot descend, evenly, with two static columns still in place.
During the ceremony for the soldiers who were cowards in battle, when they are thrown into the alligator pit, the alligators are seen eating but there is not one drop of blood seen in the water.
At the beginning of the film, Khufus is shown wearing a gold crown, with sharp edges and a closed top. As he was coming back from war, one can assume this was supposed to be a crown of war. However that type of headgear is usually pictured in blue on historic busts or wall carving. It was therefore very likely to be made of fabric. It wouldn't make sense to go to war wearing a gold tin can on your head in the desert heat.
In the opening scene the pharaoh is described as a descendant of the sun god Amon / Amun. But during the Old Kingdom the the sun god was Ra. Amun only rose to prominence, and merged with Ra, as Amun-Ra, during the Middle Kingdom, some thousand years later.
Domesticated camels feature throughout the film, which is set in the early Old Kingdom. But the camel was not domesticated around Egypt until the end of the New Kingdom, some two thousand years later.
At the beginning of the movie, during the parade heralding the return of Khufu, a member of the public is shown with a parrot on a stand. It is a known fact that African Grey parrots were kept as pets by the Egyptians, but the parrot shown in this scene was an Amazon parrot from South America, a continent not discovered for thousands of years.
The sword fight towards the end presumes the use of bronze or iron. Since Khufu lived about 2575 B.C.E. and predated the Hyksos invasion about 1400 B.C.E. that introduced bronze and horses before the Hittite use of iron in 1000 B.C.E., it doesn't work. They might have used copper, but that cannot hold an edge.
Khufu refers to the enemy he conquered as "Kushites." The Kingdom of Kush was established almost 2,000 years after the reign of Khufu.
Although the Egyptians did practice ritual sacrifice in the manner shown at the end of the film, they had stopped this practice long before the building of the Great Pyramid.