SPOILERS IN THIS REVIEW!
I'm giving it four stars based on where I rate it in comparison to other films in this genre and, more importantly, it's entertainment value. I know many producers would love to replicate the success of Stephen Sommer's "The Mummy", and unfortunately there have been a lot of terrible films hanging on the coattails of that film. So far, IMO, this has been the best of them. I have some knowledge of Ancient Egypt and the circus that would accompany any real discovery of a newly discovered pyramid or major tomb, something that is always missing in these films as the plots require a handful of incompetant and seemingly phsycologically damaged missfits to explore with no proper equipment or supervision, with perhaps the leader being a mad or evil scientist, not in this film though. In real life an Egyptian of probably governmental minister level and his minions would be with them. That said, and to it's credit, this film recognises this and sets the film during the revolution when some control had been lost. It would be easy to nitpick on Egyptology matters, but it's only entertainment, not a history lesson, and besides, this film does it far better than others. Even the best films sometimes have a moment were to progress the story something happens, or does not happen, that the audience will think "huh!". Why in Lord of the Rings did not Frodo and Sam simply get on giant eagle at the beginning of the film and have mission completed in about twenty minutes, well, no story otherwise... In this film the explorers are in a chamber with the floor collapsing, yet instead of moving to the clearly more stable outer edges, or at least laying down to spread the weight, they begin to move to the middle, the weakest point, with inevitable results. Then, in the lower chamber they have fallen into, they still stand about in the middle when it is obvious that more stones are likely to come crashing down. Oh! too late..... Minor points, but I guess that's all part of the "suspention of disbelief" thing.
In the end result it's all supernatural so anything can happen, any seemingly irrational event can be normal, cats can live in a closed environment with no food source other than themselves, and with an almost obligitory Akhenaten reference about the pyramid predating him by some centuries, then these cats survived for about 4,000 years. However, I thought the almost mummified looking modern day "Sphynx" cats were a unique and almost "cute" touch in this film. Anubis was good, and not having seen any spoilers for this film a complete surprise, as I thought the monster would be yet another boring mummy of some evil pharoah, priest, jilted lover etc etc. Yes, a bit over done, and the normal film tricks of when the monster can kill you in the blink of an eye, they suddenly start procrastinating and taking their time while the hero makes amazingly unrealistic escape, something even the best adventure films are guilty of. I was looking also beyond simply seeing a CGI monster on film, but thinking what would it be like if one of these bizarre looking Egyptian gods with their, mostly, animal heads were real, and in that respect the film does a good job. I think, though not 100% certain, that this is the first time I have seen a representation of an Egyptian god as a living and mobile creature in a film, though really Anubis should be seen, as most of them, as a good guy, but perhaps being trapped in a pyramid for about 4,000 is not fun. However, in the end result I thought the film was fun and will even watch it again. Maybe they left room for a sequel, don't know.