In 1994, a team of scientists led by Jean-Marie Chauvet discovered a cave in the South of France. Contained within the cave, which now bares Chauvet's name, were hundreds of cave paintings dating from 30,000-40,000 years ago, almost twice as old as any previously known drawings. Since the cave had been sealed off for millennia by a rock slide, the paintings were perfectly preserved, and entry to the cave was restricted to ensure that they stayed that way. Legendary film-maker Werner Herzog was granted a special dispensation to spend time in the cave, both with the scientists who have spend years mapping and cataloguing it, and alone with his crew in order to create a film documenting the interior of the cave.