Visible crew/equipment: You can see this mistake in the double decker bus scene. The bus suddenly turns left (right on the screen cause this is a front take) and hits a car that is parked in the street. If you look closely, you can see that the wheels of the car don't move because the car is mounted on a wheeled surface.

Factual error: When Rick and Evy find the first sand castle Alex left, there is one point where Evy lightly brushes some sand off of the top. If the sand had fully dried, the castle would have crumbled. (Confirmed in DVD commentary).

Factual error: If rockets were to attached to the basket of a balloon, the balloon would remain in the same spot but the basket would spin around it, due to the flexible ropes between the basket and balloon.

Factual error: Our Heroes are running after the Bad Guys who have kidnapped their "Precocious Kid." They are chasing them in a dirigible. We see them flying across the full Moon. A few nights later, we see them flying across... the full Moon. The phase of the Moon is probably the single most abused astronomy idea in movies (besides sounds in space). The Moon goes through phases as it orbits the Earth. The phase changes every night, and the difference over even two nights is pretty clear. It's possible, just, that over three nights the Moon can be almost full, then full, then a little past full. But usually the Moon is very different over the course of that much time. Really, the phase should have changed quite a bit during the chase.

Continuity: When Evie gets stabbed by Anck-su-Namun, she falls to the ground with her hands clutching the wound on her stomach. Her hands do not leave her stomach (even though her arms are out of the shot, her shoulders stay still) but in later shots her arms are spread out, away from her body.

Revealing: The Anubis Warriors do not leave footsteps in the sand, but they do kick it up when they run. This is especially obvious when the army turns to dust at the end of the movie, leaving a pristine, footprintless desert. One could argue that the dust from the disintegrating Warriors covers the footsteps, but the dust also engulfs the Medjai, whose footsteps are still visible when they cheer.

Revealing: In the opening battle, when the armies organize before charging, you can see some men walking right through each other, where digital doubles have been added into the scenes. Hard to catch, but it happens at least once or twice.

Revealing: In the final shot of the movie, you can see where the real set of the balloon changes into the computer-generated balloon. You see parts of the boat fade away or suddenly move position, and some of the wires and such disappear or change.

Factual error: There were no jet engines outside of a few top secret military laboratories in the mid-Thirties, and there has never been a jet propelled airship ever, anywhere. Even using jet engines as auxiliary power, as this one does, the acceleration would rip the airbag to pieces.

Revealing: Rick and Jonathan jump through the bathroom window. All the glass is gone as they fall.

Factual error: In the jungle / oasis scene the clumsy Jonathan grabs a rifle and the "tatooed face guy" asks him if he can handle a rifle. This rifle is a Lee Enfield Mark 4 rifle. The movie takes place in 1933. At this time the Mark 4 was not available.

Continuity: In the scene where Rick and Eve are hanging from the bars in the flooding tunnel she has her green top on. The water hits them and then they are haning from the bars, but the green top is gone. Then, when the wall breaks and the two of them spill out, she has her green shirt again.

Continuity: When you first see Oded Fehr's bird of prey (At Izzy's Place), it flies towards him, but it appears there's a line tied to the birds' leg that is either translucent or has been digitally covered over.

Revealing: During the fight against the Anubis warriors, in one shot you can see two men stab one of them in the chest. The warrior explodes and when the sand clears only one man remains. This is because all of the men were photographed separately and digitally composited together, so one of the computer artists made a mistake and accidentally cut out a character half-way through the shot.

Revealing: When the Nile explodes through the corridor in the beginning, as the villain's goon is running by, you can see the wall suddenly get a little bit lighter in a circular fade pattern. This reveals that two separate images were used, and they were composited together. One day the goon was filmed, then another, the water bursting through was filmed, and the lighting was slightly off.

Revealing: At the beginning of the movie we see Rick and Evy almost drowning in crystal clear water. Had that water really been from the Nile, it would have been muddier.

Deliberate "mistake": When Rick and Imhotep battle man-to-man at the end, in one shot above them you see steam blasting from the side of the screen. Problem is that when the angle changes, it's clear that area is just empty space, so the steam came from nowhere. (The DVD commentary mentions that they always had people with flame-throwers and steam-machines right off-screen to blast fire and smoke to make certain scenes more dramatic).

Revealing: During the final battle, when the burning oil-pots are being knocked over, you can see the weapons on the sides are rubber from the way they bend and wobble.

Revealing: I can go with Alex making sandcastles to let his parents know where to go, but if you pay attention, the scale in each castle is perfect in every detail, and there are portions which would just be too hard to make by hand.

Continuity: When Spivey is "sucked dry" by Imhotep, you can see his face is totally decimated. Yet, when Anck comes in later, his face is totally intact, with only a gray discoloration. An easy way to see this is to look at his lips: as he gets killed, they curl and rot completely off, but they are perfectly present on his corpse.