Who said frankly my dear i don't give a dam?

The famous line "Frankly, my dear, I don't give a damn" is spoken by the character Rhett Butler, played by Clark Gable, in the classic film Gone with the Wind (1939). This iconic quote occurs during a pivotal scene between Rhett and Scarlett O'Hara, expressing his indifference towards her. The film is based on the novel by Margaret Mitchell.