Mank (2020)

In 1940, film studio RKO 1940 hires 24-year-old wunderkind Orson Welles under a contract that gives him full creative control of his movies. For his first film, he calls in washed-up alcoholic Herman J. Mankiewicz to write the screenplay. That film is "Citizen Kane," and this is the story of how it was written.—grantss