Factual error: When the dirigible is passing Abu Simbel (where the four sitting statues are), the second one from the left is broken, which is accurate. However, in reality, the rubble is sitting at the foot of that statue, not a considerable distance in front of it like it was as they passed.
Factual error: During the vision of killing the pharaoh Seti I, When Nefertiti called the pharaoh's guards to save him, and after Evelyn jumped off the magic carpet, the guards shout in Arabic " Yalla ya reggala!" This means in English "Hurry up men!" No one in Egypt was speaking Arabic in this period of history. They should had shouted in Ancient Egyptian, not Arabic. (01:11:31)
Continuity mistake: Imhotep is using water to chase after Izzy's airship. The water ends up drenching the entire ship. In the next scene, Rick and Evelyn have dry hair.
Revealing mistake: After Anck-su-Namun meets with Imhotep in the museum, he waves his hand over her face and there is a brief flashback of the two of them in ancient times. They kiss, and it reverts to the present, where Imhotep is still not completely regenerated. You can tell it's CGI because of how the tip of her nose disappears into his skin as they kiss.
Continuity mistake: When Imhotep's holding onto the edge of the floor above the Underworld he's using his right arm to do so. A shot of Rick and Evelyn backing up then he's shown holding on with his left arm.
Continuity mistake: When one of the men in red is looking at the pygmy in the tree, the pygmy's face is looking up slightly (right before the first man is attacked) and has his mouth relatively open. But, right before it wakes up, its head is slightly down, and the mouth is less open than it was before.
Other mistake: How would Alex know that Imhotep's water wall took out his parents? The matter of distance is debatable. But, the winding path that the dirigible took though the canyon, as well last the water wall, would block his vision.
Continuity mistake: When Rick turns around finds Alex, Alex falls back and his hat falls off and rolls back a few inches, resting a few inches from the top of his head. However, after Rick says his name, it cuts back to Alex and the hat is practically under his head, almost behind his back.
