This book offers a solution to one of film historys major controversies: the long-running dispute over Orson Welles and Herman J. Mankiewiczs contributions to theCitizen Kane screenplay. It establishes the vital importance of computing and statistics to solving previously intractable puzzles in the arts and humanities.

Citizen Kane(1941) is one of the most acclaimed films in the history of cinema. For 50 years it topped theSight & Soundfilm critics poll. Orson Welles directed the film and is credited with co-writing the screenplay with Herman J. Mankiewicz. But the co-writer credit generates furious disputes between those who argue Mankiewicz is the sole author ofCitizen Kaneand those who claim that Welles collaborated fully with its writing.

The author employs computing and statistics to answer two questions: What are the distinguishing features of Welles and of Mankiewiczs writing?And What did each contribute to the writing of theCitizen Kanescreenplay? To answer these questions, the author bypasses opinions and impressions, and instead subjects the language of theCitizen Kanescreenplay to a forensic examination.

Employing linguistics, basic statistical tests, plus computer technology and software,the author identifies the stylistic signature of each author the combination of consistent and regular linguistic habits that make eachauthors writing distinctive. This book replaces impressionistic discussions of Mankiewiczs and Welles contributionsto theCitizen Kanescreenplay with a rigorous, experiment-driven statistical analysis. Earlier statistical studies of authorship have discovered that small, unassuming language features (such as punctuation, pronouns, and prepositions) in statistically significant quantities, constitute a screenwriters distinctive writing habits. Only with the extensive experimentation carried out in this volume, did the author decide Mankiewiczs and Welles specific habits and their contributions toCitizen Kane.