Charles Milton Watt, a longtime publicist whose film campaigns included “Gone With the Wind” and “The Quiet Man,” died May 9 of cardiopulmonary arrest at his Sherman Oaks home. He was 91.A Berkeley native and 80-year resident of the San Fernando Valley, Watt held positions for various film studios, including stints as a publicity director at Republic Studios and publicity manager for American Intl. Pictures. Watt also worked for Paramount, Columbia, Warner Bros., and David O. Selznick Prods. He promoted such films as “Duel in the Sun,” “The Third Man” and “Mr. Blandings Builds His Dream House.” He also organized campaigns for the Motion Picture Relief Fund and the Screenwriters’ Guild. Watt is survived by a nephew.