Wyatt Hodgson took Koyaanisqatsi and sped it up 1552% so you can watch the whole movie in about five minutes.
Reggio uses time lapse in the film to great effect -- you notice different things at different playback speeds -- and Hodgson's clever use of the same technique reveals the overall structure of the film much more than watching it in realtime...but the emotion of the film is completely removed. (via the candler blog)
KOYAANISQATSI, [Godfrey] Reggio's debut as a film director and producer, is the first film of the QATSI trilogy. The title is a Hopi Indian word meaning "life out of balance." Created between 1975 and 1982, the film is an apocalyptic vision of the collision of two different worlds -- urban life and technology versus the environment. The musical score was composed by Philip Glass.
The entire film is available on both YouTube and Hulu.