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Who wrote the screenplay for Citizen Kane?

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The screenplay for the 1941 film Citizen Kane was co-written by Herman J. Mankiewicz and Orson Welles.12

The script, which won an Academy Award, drew heavily from Mankiewicz's personal experiences with the publishing magnate William Randolph Hearst. In addition to co-writing the film, Welles served as its producer, director, and lead actor.12