* ExecutiveMeddling: Paramount left Leone alone during the actual production, but they cut over 20 minutes of the film for international distribution, including the entire tavern sequence and [[spoiler:Cheyenne's death]]. This accounted in large parts for the film's cool reception upon release. Nor would ''West'' be Leone's [[Film/OnceUponATimeInAmerica last brush with studio editors, either]].
* FakeAmerican: Jill is played by Claudia Cardinale and Morton by Gabriele Ferzetti (both Italian).
* HeyItsThatGuy: Morton is [[Film/OnHerMajestysSecretService James Bond's father-in-law]] and Knuckles [[Film/TheGoodTheBadAndTheUgly learnt to shoot, not talk]].
* PlayingAgainstType: Creator/HenryFonda plays the villain in this one, and a very vile one. Fonda had intended to radically change his usual appearance for the film, growing a mustache and beard and wearing brown contact lenses. Leone talked him out of it, as the shock of seeing good old Henry Fonda as a villain was exactly what he wanted. Ben Mankiewicz remarked on TCM that casting him as the villain hurt the box office, because viewers, especially Americans, thought he was too creepy.