The Pyramid movie review & film summary (2014)
The massive structure at the center of "The Pyramid" is a three-sided pyramid uncovered in the desert outside Cairo after spending untold millennia hidden deep beneath the sands. Technically speaking, this means that the structure in question is actually a tetrahedron and not a pyramid but let us get down to brass tacks—there are very few people out there who would willingly pony up good money to see a film entitled "The Tetrahedron," especially a dippy run through the usual horror clichés that plays like a cross between "The Blair Witch Project" and the Steve Martin ditty "King Tut," only...
Source: rogerebert.com