The Fall of Buster Keaton assesses Keaton's work during the talking picture era, especially those made at MGM, Educational, and Columbia studios. While giving some attention to the early part of Keaton's career, Neibaur focuses primarily on Keaton's contract work with the three studios, as well as his subsequent work as a gagman, supporting player, and television pitchman. The book also recounts the resurgence of interest in Keaton's silent work, which resulted in a lifetime achievement Oscar and worldwide recognition before his death in 1966.