Bests & Worsts Reviews from Amazon

I happen to like 3D in the theater and at home, so I want to speak to that aspect of this film. Mr. Herzog saw the potential for 3D when he first visited the cave. He had to create his own, collapsible 3D equipment to fit through the hermetically sealed cave door, and it had to be manually adjusted for parallax depending on the distance to the image being filmed because access is via a walkway from which they could not stray. On the second visit they could use the knowledge from the first to gauge the length of extensions required to see images on the back side of pendant rocks and protrusions. The end result is a 3D feast. The cave painters used the 3D shape of the rocks in the cave to give depth to their paintings. In one case the face of a ox is on one face of a rock and the flank of the beast corresponds to a bulge in the side of that same rock, around the corner, much as if you were viewing the animal. While the film and the paintings can be appreciated in 2D, the true artistry of the ancient painters can really only be appreciated in 3D, and Mr. Herzog was right to endure the extra hardship of lugging the 3D camera through the cave. Bravo.