Having invented the spaghetti-western a few years prior by virtually copying Akira Kurosawa’s “Yojimbo” frame by frame as “A Fistful of Dollars” to such a degree that Toho sued him, Leone used the spaghetti-western as a form to attack the, in Leone’s opinion, dominating morality of American Puritanism.
Starring in the Western drama "Rawhide," he couldn't find satisfactory employment in Hollywood, so he ventured all the way to Italy, working for director Sergio Leone in the oater "A Fistful of Dollars."
His other distinguished masterpiece, 1969’s Once Upon a Time in the West, is an immaculate pastiche, to be sure, (Was Leone truly “the first postmodern filmmaker”?) but is also heavier and lacking the man that Leone made famous starting with 1964’s A Fistful of Dollars, Clint Eastwood.
This movie and its counterparts, A Fistful of Dollars (1964) and For a Few Dollars More (1965) were financially successful upon their combined release in the United States, but scholars and critics treated them as second-rate, drive-in features.
As Sir Christopher Frayling notes in his audio commentary for A Fistful of Dollars (the first of four films included in the recently released DVD box set, The Sergio Leone Anthology), the opening credits—with their galloping, target-practice-ready silhouettes—are meant to mimic the James Bond series, then tremendously popular in Leone’s home country of Italy.
Italian director Sergio Leone (“Once Upon a Time in The West”/”A Fistful of Dollars”/”The Colossus of Rhodes”) creates a cynical stylish unflinchingly violent spaghetti western that mocks the genre by showing the dark seedy side of the west and with its success became very influential in the western genre.