It was always believed that Charlie Chaplin appeared in 35 films for Mack Sennett's Keystone studios during 1914. However, nearly 100 years later, a 36th film has been discovered. Chaplin makes a brief appearances as a Keystone cop in A THIEF CATCHER, released February 19, 1914, but filmed between January 5 and 26, 1914. It was made after MAKING A LIVING, and Chaplin's bit would have been filmed sometime during or after Chaplin's filming of KID AUTO RACES AT VENICE, CAL. (filmed January 10) and MABEL'S STRANGE PREDICAMENT (filmed January 6 to 12). The discovery was made by Paul E. Gierucki, and the film will be shown at Slapsticon in Arlington, VA (July 15-18, 2010). You can read more in this article by Scott Eyman in the Palm Beach Post and on the Slapsticon website which contains a press release.