Hush...Hush, Sweet Charlotte is a 1964 American psychological horror thriller film directed and produced by Robert Aldrich, and starring Bette Davis, Olivia de Havilland, Joseph Cotten, Agnes Moorehead and Mary Astor in her final film role. It follows a middle-aged Southern woman, suspected in the unsolved murder of her lover from decades before, who is plagued by bizarre occurrences after summoning her cousin to help challenge the local government's impending demolition of her home. The screenplay was adapted by Henry Farrell and Lukas Heller, from Farrell's unpublished short story "What Ever Happened to Cousin Charlotte?"

Following his previous success adapting Farrell's novel What Ever Happened to Baby Jane?, Aldrich originally cast the film to reunite Davis with Joan Crawford, despite their notorious turbulence on set. Principal photography began with Davis in the title role and Crawford as Miriam, but shooting was postponed, ultimately Crawford was replaced and the role was recast with de Havilland. The film was a critical success, earning seven Academy Award nominations.