Metropolis

If you were to ask me what one of my favorite movies is you might be surprised to hear that it is in fact a silent film from 1927. Metropolis is regarded as a masterpiece by many, myself included. Some say it is the first major science fiction film. It has beautiful imagery and is full of early twentieth century expressionism.
The movie is set in a dystopian future where the rich live in the giant buildings above while the workers toil in the factories beneath the surface. The mayor's son, Freder, soon discovers that his father is planning to create a robotic replica of a young girl to sew thoughts of rebellion in the hearts of the workers so he can be justified in using force against them, forever crushing the hopes of any future rebellion.
I know this plot may seem like a cliche setup, but the reason why is that is is because this movie more or less invented it. This movie has influenced other famous science-fiction stories including Blade Runner, Doctor Who, The Matrix, and even Star Wars.

This influential film is amazing. Sadly, it was not a financial success and it was chopped up into tiny pieces after its release. Even the most complete version to be found today is still missing two scenes. If you ever have a chance to see it, do not pass it up.