The Chauvet Cave in southeastern France was discovered in 1994 and found to contain artwork painted over 30,000 years ago, including some of the world’s oldest known cave paintings. Filmmaker Werner Herzog was given special permission to bring his minimal crew and custom-built 3D cameras into the historic site for six four-hour days of filming. The evocative result—Herzog’s only film released in 3D—features interviews with historians and scientists as well as the director’s own distinctive narration, wherein he approaches the images as a form of “proto-cinema.”