Gone with the Wind
Daisy's story is below the poster.

Daisy reluctantly agreed to do another Victor Fleming film under the condition that there be no strange flying animals or small hyperactive people.
Actors and actresses had personal favorites of the many memorable scenes in Gone with the Wind. For Daisy, those were bedroom scenes where she had a soft mattress, fluffed pillows, a nice comforter, and her lines consisted of purring while she pretended to sleep. She was a natural.
Daisy was also an uncredited writer in the movie. One of the best known of Clark Gable's lines in the movie was inspired by an overheard conversation between Vivien Leigh and Daisy. Prior to one scene
, Miss Leigh asked Daisy if she preferred to be filmed sleeping on top of the comforter or beneath it. After a long day of shooting and reshooting the same scene with no breaks for food or treats, a tired and irritable Daisy replied, "Frankly, my dear, I don't give a damn."
Fleming, the director, overheard the conversation and thought that the line would be perfect for Gable at the end of the film, so he told the screen writer insert the line into the script.
Although Daisy never received a writing credit for the line, she was immensely proud of her contribution.