“Metropolis”
1927, silent and black and white but all the better for that.
This film has been, probably still is available in many versions, even one with added music by Giorgio Moroder and members of Queen. Ignore all these, including ones where the the caption cards are removed or reduced to speed up the film. Find the best restored and complete version, and see it as it should be seen. Even better, on the big screen.
Is this the best film ever made?