You won't believe it, but two of the great silent stars, Buster Keaton and Charlie Chaplin, did actually collaborate! They teamed up for a film called "Limelight" in 1952, which was Chaplin's movie, but Keaton had a significant part in it. Talk about a silent film power duo! This was the only time they worked together though. So, if you're a huge fan like me, that's a film you definitely can't miss. Catch these two comic geniuses in action in one frame - it's like seeing Batman and Superman in the same movie, only funnier and less destructive!