Hedda Hopper her column throughout the 1940s, advocating for her to land starring roles in "The Bells of St. Mary's" (1945) and "Joan of Arc" (1948). She was enraged when Bergman lied to her about being pregnant with married director Roberto Rossellini's baby. Hopper had believed Bergman, printing a fervent denial of the rumor in 1949. However, Bergman was indeed pregnant, and the news was leaked to Hopper's arch-rival Louella Parsons, who got the scoop. Seeking revenge, Hopper launched a PR campaign decrying Bergman for being pregnant out of wedlock and carrying a married man's child. Hopper had an acting role in
Hedda Hopper Best Actor. The rumor was untrue, but Hopper joked that she wished she had thought of it. Screenwriter Jay Bernstein related that when he told Hedda that because of her extreme conservatism many people in Hollywood privately called her a Nazi, the gossip columnist began to cry and replied: "Jay, all I've ever tried to be is a good American." Hopper was one of the driving forces behind the creation of the Hollywood blacklist, using her 35 million strong readership to destroy the careers of those in the entertainment industry whom she suspected of being Communists, having Communist sympathies, being