Other mistake: When Rick and Ardeth Bay save Evie from the warehouse after Imhotep is resurrected, there are four mummies chasing them when they get on the double-decker bus. Rick shoots one of the mummies and "kills" it. He shoots another one in half and goes to the top of the bus to fight another one. The top portion of the mummy that got shot in half then fights Ardeth Bay. Evie kills the mummy that got shot in half and the top part of the bus gets torn off by the bridge and kills the mummy Rick is fighting. John stops the bus and they all sign with relief. Whatever happened to the fourth mummy chasing them? (00:43:20 - 00:46:40)
Other mistake: When Darry is in the basement under the church, Darry is laying on the floor surrounded by a circle of sunlight appearing through the pipe. Then follows a series of cuts between Trish at the open end of the pipe, and Darry. Why do we not see a silhouette of Trish on the floor rather than a perfect circle of light?
Other mistake: When Stackhouse and Burnett are being chased by the SAM, they pull to the right after deploying flares and you hear a voice on the radio say "Chaff, Chaff, Chaff". Chaff is a cartridge of small metal strips released as a countermeasure for radar guided missiles. These small strips add noise to the radar and clutters it up giving the pilot about 5 seconds to evade the missile. Throughout the scene, several indicators such as the flares and exploding fuel tanks suggest that they are fleeing from a Heat-seeking missile, not a radar guided one. To add to this, the voice on the radio wasn't that of Stackhouse or Burnett and was added for radio effect. (00:20:20)
Other mistake: When Dennis jumps out from behind the glass wall shield, leaving Arthur behind it and The Hammer and Juggernaut ghosts attack, Arthur bangs the glass yelling as if he can't get out; but the wall shield is only propped up, unsupported and should've fallen straight forwards when he thudded his fists on it.
Other mistake: When we see the body of Liz Stride after her throat has been cut, the blood is bright pink. This may be due to the light shining on it, but it's still pink. (Surely by then, the blood would have turned brown after mixing with the oxygen?).
Other mistake: When Orlando is driving the car (I believe the old beat up car) the gear shift is all the way up in the park position, yet the car is moving.