Reading some of the behind-the-scenes factoids about this one, it seems like it could be Exhibit A for the school of thought that says that making comedy is SERIOUS BUSINESS. That said, the film itself is as light as a feather, and the humor is pretty gentle throughout. For the curious, my favorite of the pratfalls, in no particular order:
1 The sequence where Chaplin and Meyers smoke each others cigars, accidentally
2 The boxing match, when all three participants are moving in unison
3 The big fat orange cat that takes out Chaplin with a flowerpot
4 The squeaks made by the tramp after he accidentally swallows a whistle
5 The way Chaplin goes flying off the wharf when Meyers throws the boulder into the water after accidentally putting the rope around the Tramp's neck
Also, that ending is pretty solid.