Written by Robert Kaplow, author of the novel Me and Orson Welles which inspired the Linklater film of the same name, Blue Moon profiles the final days of Lorenz Hart, part of the hit songwriting team Rodgers & Hart. The film is set primarily in Sardi’s Restaurant on March 31, 1943, the opening night of Oklahoma!, which marked Rodgers’s first collaboration with Oscar Hammerstein II as Hart’s replacement.