Has anyone seen the Cave of Forgotten Dreams by Werner Herzog yet? I hear that the 3D version is spectacular, particularly because he had the foresight to use 3D as it is intended: in highly dimensional spaces where depth will help shape understanding of spacial relations. The Chaveaut Cave has been seen by less people than the top of Everest, so having him go in there and film in HD with a real 3D setup might be our only chance to see it as it is.