From Hand Drawn Life.
Hand Drawn Life - The Film, directed by Tom Tanquary, is a documentary on the History and Influence of Newspaper Comic Strips.
There's a basis for claiming that newspaper comics were the first real form of American Pop Culture. The comic strips themselves played a major roll in creating the newspaper industry itself.
They were much more than just humor. They were the pulse of American Culture and an invaluable part of newspapers for almost a 100 years.