BARRYMORE FILM FESTIVAL: The Shadow on the Window (1956-73 min.). Secretary Linda Atlas (Betty Garrett) witnesses the murder of her boss by three teenaged thugs (John Barrymore, Jr., Corey Allen, Gerald Sarracini), who then take her hostage along with her son Petey (Jerry Mathers, soon to star in Leave It to Beaver). Can police detective Tony Atlas (Philip Carey) save his wife and child from these hoodlums? Leo Townsend and David P. Harmon scripted this thriller for director William Asher. 7:30 p.m.