Taking a break from narrative features such as Bad Lieutenant: Port of Call New Orleans and My Son, My Son, What Have Ye Done?, iconic filmmaker Werner Herzog is back with his latest project, a 3D documentary that explores the beautiful caves of Chauvet in the South of France, which capture the oldest known depiction of human existence in a natural setting. Cave of Forgotten Dreams will arrive on April 29th, and we have the new trailer below, along with five new photos.