This is a wonderful movie that would still be very interesting but not nearly as spectacular if it wasn't in 3D. Therefore, I encourage you to see it in the theater unless you are the lucky one with a 3D TV and some 3D glasses at home! You will not be disappointed. It matters not if you are a history buff, artist, anthropologist or have no interest in any of the above, you can't help but just be amazed at what you will see and hear about in this exploration of a relatively recent discovery in France.
Run, do not walk, to a theater near you that is showing it. As with many documentaries, I'm sure it will not be playing long.
Read a professional review here.