As the bus crosses Tower Bridge, the structure is shown in a red, white and blue colour scheme. The bridge was not painted in those colours until the Queen's Silver Jubilee in 1977; in 1933 it was a plain brown.
Evelyn appears to be wearing contemporary, seamless nylon tights.
A chain reaction of toppling columns would not be feasible. Columns situated alongside the walls of such buildings were secured to the wall at their rear to provide additional stability.
The protagonists visit the Temple of Philae while following Alex to the oasis, which is depicted in its present-day condition. In the 1930s the temple was partly submerged by the old Aswan Dam and was only relocated to its current (dry) site by UNESCO in the 1960s.
When Alex fires at the trio of thieves with a slingshot, he is plainly using an aluminium Wrist-Rocket (tm). That slingshot was not commercially available until 1954, according to the manufacturer's website.
When initially worn, the bracelet projects a view of the Giza Plateau in its present-day condition; afterwards it presents Karnak as it stood in antiquity rather than in its modern form.
In the front windscreen of Rick's car there is a modern Road Fund Licence disc.
The dirigible is fitted with a period brass carbon tetrachloride fire extinguisher, yet when Izzy Buttons attempts to extinguish the flames after Imhotep causes it to crash, he is plainly using a modern dry-chemical extinguisher (repainted to conceal its contemporary appearance) — a device that was not invented until more than 30 years after the period in which the film is set; indeed, the model shown dates from over fifty years later.
The film is set in 1933, yet contains a chase scene featuring an AEC Routemaster double-decker bus — a model that was not produced until 1954.
Rachel Weisz and Patricia Velasquez engage in two separate duels armed with the sai. The sai is an Asian weapon that was not used in ancient Egypt. It is designed to counter longer weapons such as swords or hafted arms. In combat it is used with the point; it cannot slash, as it has no cutting edges.
In several scenes where Rick is wearing a bandolier of shotgun cartridges, the white wads inside the cases are plainly visible instead of the fronts being crimped shut, indicating they are blank cartridges. The shells are further anachronistic: plastic shotgun cartridges did not appear until the 1960s.
The airship is fitted with a period-correct brass carbon tetrachloride fire extinguisher, yet when Izzy Buttons tries to douse the flames after Imhotep causes it to crash, he is plainly using a modern dry-chemical extinguisher that has been repainted to hide its contemporary appearance — that type of extinguisher was not developed until more than thirty years after the period in which the film is set, and the specific model depicted did not appear until over fifty years later.
The double-decker's number plate reads KLB 713. It identifies the bus as a Leyland AEC, originally registered in 1950 — seventeen years after the events depicted in the film.











