Charlie Chaplin - Theme from Limelight

Charlie Chaplin is one of the most famous of the 20th Century actors.  Yes, he was a commie bastard (back when that was said seriously, rather than as an insult), but he was groundbreaking as an actor and as a director.  What's interesting is that he was also a composer, writing the music for all of his films.  He won the 1973 Oscar for best original composition for this piece.