This Sunday night (11/7) at 8:00 ET, Turner Classic Movies will present the latest--2010-- restoration of Fritz Lange's Metropolis (1927). The film is a dramatic visual feast of interest to film and/or science fiction fans as well as those who enjoy history, politics, economics, art, architecture, and urban studies. This new restoration includes about 25 minutes of film that went undiscovered for 80 years. It also incorporates editorial changes that now bring the film very close to the final print shown in Berlin at its premiere.
If you want to know what you're in for if you choose to invest 150 minutes to watch the film, the Wikipedia entry explains all, but you may want to avoid reading the plot.
OTR loves this film from several points of view. For example, as you watch Metropolis, your will see science fiction film history from Frankenstein (1931) to Blade Runner (1982) to the Terminator franchise. Then there's the influence on film noir, but OTR will leave you to discover that on your own.
Now where did I put that case of microwave popcorn?