Keystone

Watch Keystone full movie online Movies123. Watch Keystone 123movies online for free. Keystone 123movies: A side-splitting, rip-roaring madcap of a musical, giving you an insider's view of the early movie-making days. Laugh along with Mack Sennett as he creates the most memorable comedic scenes of the century. This is a musical comedy feast about the youth, the enthusiasm, the work, the zany fun, and above all, the innocence of those great times when America first started going to the movies.