In Behind the Screen, the seventh of his 12 Mutual Studios two-reelers, Charlie Chaplin pokes some less than gentle fun at his former employer Mack Sennett. Chaplin and Eric Campbell play a couple of bumbling stagehands at Gigantic Picture Studios. They knock each other about, break for lunch, and knock each about again. Pretty Edna Purviance sneaks into the studio disguised as a boy. Chaplin finds out her secret and steals a kiss -- drawing a very suspicious glance from Campbell. The film ends with a combination union strike and slapstick pie fight. Best bit: a temperamental movie comedian refuses to throw a pie without proper "motivation." Chaplin spent so much time achieving perfection in Behind the Screen that Mutual was obliged to apologize to its exhibitors for missing the scheduled release date by two weeks. ~ Hal Erickson, Rovi