About the film
The Mystery of the Sphinx is a 1993 television documentary about the Great Sphinx of Giza, with a central focus being the conflict of egyptologists against a number of modern geology and oftentimes fringe theory proponents of the Sphinx water erosion hypothesis. Charlton Heston is the host of the documentary, which features John Anthony West and geologist Robert M. Schoch.
From the film's Wikipedia article (CC BY-SA 4.0).