I would drive 60 miles to see Cave of Forgotten Dreams in 3D if it was playing here. There are two theaters showing it and both of them are playing it in 2D.
I was particularly excited about seeing this in 3D. For those that don't know, it's a Werner Herzog documentary about the Chauvet Cave in France which is nearly inaccessible to people and has pristine 30,000 year old human cave art. This isn't some post 3D processing gimmick. It was filmed that way. Herzog has criticized the way filmmakers have utilized 3D, claiming the brain needs more time to process 3D images and quick-cut editing styles don't properly allow the brain to process that something is in 3D. He said his film, he was truly working to fully utilize the 3D element in all it's glory. I'd love to see what he's talking about.