The positioning of the bandages on the Mummy's head change between shots.
During one scene, the cult-leader holds up a small jackal-headed artifact and says "Ah, Anubis, the Golden Jackal". Rather than a depiction of the God Anubis this appears more in the style of a Canopic jar featuring the lesser-Diety Duamutef, one of the four sons of Horus. The four Canopic jars were traditionally used to store the organs during the Mummification process, each one would represent one of the four sons of Horus; Imsety, Hapy, Duamutef and Qebehsenuef, and Duamutef would contain the stomach of the Mummified body.
When pursuing his victims, the Mummy blatantly walks round towns and urban streets in broad daylight and is never noticed by any witnesses.
Boom shadow is visible when the new Cult members introduce themselves near the start of the movie.
Near the start of the movie, when the Archaeologist explains how he knows whose tomb they are in, he gestures to a wall mural of a face and incorrectly refers to it as a hieroglyph. A hieroglyph (Greek for "sacred writing") was a character of the ancient Egyptian writing system, and not a term used to describe facial portraits.