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Vivien Leigh later said that she hated kissing Clark Gable because of his bad breath, rumored to be caused by his false teeth, a result of excessive smoking. According to Frank Buckingham, a technician who observed the film being made, Gable would sometimes eat garlic before his kissing scenes with Vivien Leigh.
The fact that Hattie McDaniel would be unable to attend the premiere in racially segregated Atlanta outraged Clark Gable so much that he threatened to boycott the premiere unless she could attend. He later relented when she convinced him to go.
When Rhett pours Mammy a drink after the birth of Bonnie, for a joke during a take, Clark Gable actually poured alcohol instead of the usual tea into the decanter without Hattie McDaniel knowing it until she took a swig.
First color film to win the Academy Award for Best Picture.
At nearly four hours long, this is the longest running of all motion pictures to win the prestigious Academy Award for Best Picture.