This video is from Essential Cell Biology, 3rd Edition by Alberts, Bray, Hopkin, Johnson, Lewis, Raff and Roberts (and apparently not from Tokyo Institute of Technology as credited elsewhere). They meant for this video to be educational; it is sublime. The root of all life as an aesthetic experience.
Apparently, movies are big in the world of molecular biology, especially ATP synthase research.
You can find this video and many more at Science Stage. I found it [via Clear Science]