This Collider feature ranks the three films in Sergio Leone's loosely connected "Once Upon a Time" trilogy, which followed his more famous Dollars trilogy (including The Good, the Bad and the Ugly). The article argues these later films remain underappreciated relative to their quality, noting none of Leone's movies ever received an Oscar nomination despite the acclaim of Ennio Morricone's scores and Leone's directorial style, and that spaghetti Westerns generally weren't taken seriously in their era.

The trilogy is linked thematically rather than narratively, with one entry's title causing particular confusion: commonly known as Duck, You Sucker! or A Fistful of Dynamite, the writer prefers the title Once Upon a Time… the Revolution, set during the 1910s Mexican Revolution, arguing it best connects the film to its two companions. Despite ranking it last of the three (behind implied entries such as Once Upon a Time in the West and Once Upon a Time in America), the author still calls it one of the most underrated films of its era, describing it as darker and more dramatically intense than any other Western Leone directed.