- Directors: Raoul Walsh
- Producers: Robert Buckner
- Writers: James J Corbett, Vincent Lawrence, Horace McCoy
- Genres: Biography, Comedy, Drama, Romance, Sport
- Actors: Errol Flynn, Alexis Smith
In 1890s San Francisco, boxing is illegal. James J. Corbett (Errol Flynn), a brash young bank teller, attends a match with his friend Walter Lowrie (Jack Carson). When a police raid nets Judge Geary, a member of the board of directors of Corbett’s bank, Corbett’s fast talking gets his superior out of trouble. The judge is looking to improve the image of boxing by recruiting men from more respectable backgrounds and having them fight under the Marquess of Queensbury rules. He has even imported British coach Harry Watson (Rhys Williams) to evaluate prospects. Watson finds that Corbett, raised in a combative Irish immigrant family headed by Pat Corbett (Alan Hale), has excellent fighting skills; Geary likes his protegÃ©’s seemingly-polished manner.
However, Corbett’s arrogance irritates many of the upper class, particularly Victoria Ware (Alexis Smith). They clash frequently, but Corbett is attracted to her, and his limitless self-confidence and charm eventually overcome her distaste for him.
Meanwhile, Corbett becomes a professional prizefighter. He acquires a manager, Billy Delaney (William Frawley), and introduces a new, more sophisticated style of boxing, emphasizing footwork over the unscientific brawling epitomized by world champion John L. Sullivan (Ward Bond). After winning several matches, Corbett finally gets the opportunity to take on the great man. Corbett’s method of boxing baffles Sullivan, and Corbett wins not only the title, but also Victoria.