* AdaptationDisplacement: There was originally a book by Barbara Hawks [=McCampbell=], Howard Hawks' daughter.
* AwesomeMusic: The score by Musci/DimitriTiomkin.
** Creator/HowardHawks realised that he had Music/DeanMartin and MusicCreator/RickyNelson in his film, so he put a musical number in. Martin sings "My Rifle, My Pony and Me", while Nelson leads a singalong of "Come Along Home, Cindy".
* CounterpartComparison: According to film scholar Peter Cochran, ''Film/HighNoon'' and ''Rio Bravo'' have two of the same types of characters who show up in the film: the town drunk and the old-timer, but the two are presented very differently.
** In ''High Noon'', the drunk, Charlie (Jack Elam) is asleep in a jail cell for most of the movie, and just before the shootout, when the marshal releases him, he’s still fuzzy and appears to have no idea what’s going on. All the marshal can do is try to send him home. His ''Rio Bravo'' counterpart Dude (Dean Martin) is one of the sheriff's deputies, and is fast on the draw when the script requires him to be.
** The old-timer in ''High Noon'', Martin Howe (Lon Chaney Jr.) is the retired marshal of Hadleyville and would be useless in a gunfight because of his arthritic hand and busted knuckles. In ''Rio Bravo'', the old-timer Stumpy (Walter Brennan) is the sheriff's other deputy, and has a gammy foot so he's still able to shoot.
* GermansLoveDavidHasselhoff: The film was a huge success in Italy, laying the groundwork for the following decade's Spaghetti Western boom.
* HeReallyCanAct:
** Despite appearing to call for nothing more than Creator/JohnWayne's typical performance, the film lets him show more range than usual, as Chance has quite a few vulnerable moments where it's clear how worried he really is about making it through the standoff. He also gets really flustered in his scenes with Feathers.
** The film allso showed people that Creator/DeanMartin could do more than sing or be straight man to former comedy team partner Creator/JerryLewis. The scenes where recovering alcoholic Dude is going through withdrawal and has the "shakes" proved how good a dramatic actor he could be.
* HilariousInHindsight: Nathan Burdette has a band play music that was used to intimidate the defenders at the Alamo. A year after this film, Creator/JohnWayne directed and starred in ''Film/TheAlamo'' as Davy Crockett.
* MoralEventHorizon: If you didn't think Joe Burdette was a {{Jerkass}} for tossing a coin in a spittoon for Dude or forcing a kiss on a woman, you will when he murders a man for absolutely no reason other than he tried to break up his fight with Dude.
* TheWoobie: Dude.