What was Meryl Streep’s theatrical film debut? July 23, 2020 by Pamela Landy Meryl Streep’s theatrical film debut was Julia (1977). Related Answers What was the first film in which Andy Hardy appeared? What was the first all-black sitcom on TV? What was the first theatrical performance in America north of Mexico? What was the feature film debut of radio’s “Amos n Andy”? What was Bette Davis’s film debut? What was Katharine Hepburn’s film debut?