I borrowed a copy of Arthaus' Dance on Screen from the library. I enjoyed it overall, but I wouldn't consider actually purchasing a copy...
except.....
around the thirty-seven or thirty-eight minute mark it showed a clip from a Danish Public TV program featuring a piece choreographed by Birgit Cullberg. The music was Beethoven's 3rd Piano Concerto, but the dance just might have been the most beautiful thing I've ever seen on film or video.
I wish I could find a copy of the complete performance. Does anyone know anything more about this?