Dodge City is a 1939 American Western film starring Errol Flynn, Olivia de Havilland and Bruce Cabot. Directed by Hungarian-turned-Hollywood filmmaker Michael Curtiz and based on a story by Robert Buckner, it was filmed in early Technicolor. As a classic western, Dodge City contains — with the possible exception of an attack by hostile Red Indians — all the stock ingredients and clichés the genre has usually been associated with. It chronicles the rise, after the end of the Civil War, of the small frontier post of Dodge City, Kansas to civilized and respectable town and trading place for cattle. In the process, Dodge City has to get rid of the baddies terrorizing the citizens, and it takes a new sheriff and his deputy to clean up the town and introduce law and order. The film was a huge hit and one of the highest grossing movies of the year.

The action of the film starts with Colonel Dodge (Henry O'Neill) arriving on the first train and subsequently opening the new railroad line that links Dodge City with the rest of the world. A few years later, Dodge City has turned into the "longhorn cattle center of the world and wide-open Babylon of the American frontier, packed with settlers, thieves and gunmen — the town that knew no ethics but cash and killing". In particular, it is Jeff Surrett (Bruce Cabot) and his gang who kill, steal, cheat and, generally, control life in Dodge City without ever being brought to justice. As Surrett has installed one of his puppets as sheriff, the other citizens' hands are tied when it comes to arresting any of the evildoers.