Metropolis is one of the classic silent films, and one of the 100 Best Films of All Time on most of the lists you will find. Fritz Lang creates a dystopian future on a grand scale, and his vision is not too far from where we are now, aside from the forced separation.
Starring: Brigitte Helm, Alfred Abel, Gustav Frohlich
(1927) 118 mins
It is the future and humans are divided into two groups; the thinkers, who make plans, and the workers, who achieve goals. Completely separate, neither group is complete, but together they make a whole. One man from the "thinkers" dares to visit the underground where the workers toil; and is astonished by what he sees.
Director: Fritz Lang
Producers: Giorgio Moroder, Erich Pommer
Writers: Thea von Harbou, Fritz Lang