Godfrey Reggio's Koyaanisqatsi (1982)

Directed by Godfrey Reggio and scored by Philip Glass, this movie that combines slow motion and time lapsed footage creates a dialogue between the sublimity of nature, but also of the technological age (and man's small, yet greatly effected position within it).:
http://www.youtube.com/watch?v=Sps6C9u7ras
(you'll have to excuse the intrusive youtube ads, but, hey, it's free!)

Hauntigly beautiful.