Humphrey Bogart
He worked on the story for "Racket Busters" (1938) starring Humphrey Bogart and "Comet Over Broadway" (1938) and provided the story for the 1939 Raoul Walsh gangster film "The Roaring Twenties" starring James Cagney and Humphrey Bogart, basing it on his own experiences during that decade. In his onscreen foreword to the film, he wrote: