If you get the chance, it can be quite the experience to watch a screening of a silent movie where the music is played live, like they did back in the day. Sometimes they are played with newly-composed scores.
Some directors/movies that can be worth checking out are:
Victor Sjöström – The Phantom Carriage
Mauritz Stiller – The Saga of Gösta Berling
Charlie Chaplin – The Kid
Fritz Lang – The Testament of Dr. Mabuse