Title : The Play House
Genre : Comedy, Fantasy
Cast : Buster Keaton (Audience / Orchestra / Mr. Brown - First Minstrel / Second Minstrel / Interctors / Stagehand), Edward F. Cline (Orangutan trainer (uncredited)), Virginia Fox (Twin (uncredited)), Joe Murphy (One of the Zouaves (uncredited)), Joe Roberts (Actor-Stage Manager (uncredited))
Movie Plot : The opening scene, a dream sequence prior to the vaudeville routines which follow, is what makes this film famous. In it Keaton plays everyone in a theatre simultaneously (through multiple exposures).