The features and documentary films of German director Werner Herzog include “Aguirre the Wrath of God,” “Fitzcarraldo” and “Grizzly Man.” His latest documentary, “Cave of Forgotten Dreams” is about the ancient art found in a cave in southern France, and it was filmed in 3-D. For Colorado Public Radio film critic Howie Movshovitz, this is one more great film from one of the greatest filmmakers.