'The Pyramid' is just another one of those films where a bunch of idiots go in to a dark space and act like idiots. Inevitably, their numbers dwindle ("Ce tombeau sera votre tombeau!"). It's a surprise anyone gets to the 10 minute mark. Off the top of my head, this is perhaps most comparable to 'As Above, So Below'. They both involve people exploring old tomb areas with their cameras while flirting with the gates to the afterlife. The main difference is that I preferred 'As Above, So Below'.
The film starts out trying to be a found-footage one, but decides to partially give up on that and film parts of it normally. Though it doesn't make a difference as you won't see much. When it does decide to show something, it is shoddy stuff. It fails to bring any atmosphere or scares but it also forgets any kind of entertainment. It is one of those ones. I was hoping that it might at least go down some fun routes but it always opts for the dull one it takes very seriously. And the pay-off for your patience (should you wish to stay to the end) is, as I mentioned, a 'Scooby-Doo' reject. Aaaah(!). Which they treat seriously and expect the audience to perceive as genuine horror. It's potentially less terrifying than the plush owl in 'Deliver Us From Evil'. And, despite the poster, there are no mummies coming to life or anything like that!
This is another poor excuse of a 'horror' film. It doesn't give any suggestion it knows what it is doing and just ends being 89 minutes of people running in the dark.