- HD 1080
- Runtime: 166m.
- Status: Released
- 6
- Languages: it
- Country: Italy, United States of America
- Director: Sergio Leone
- Stars: Claudia Cardinale, Henry Fonda, Jason Robards, Charles Bronson, Gabriele Ferzetti
- keywords: small town, loss of loved one, harmonica, wedding party, spaghetti western, arizona territory, intercontintental railroad, outlaw gang, water pump, mysterious character, boom town, railroad company, hope for a new life, railroad construction, preserved film
- Production_studio: Paramount Pictures, Rafran Cinematografica, San Marco
- Slogan: There were three men in her life. One to take her… one to love her —and one to kill her.
- providers: Amazon Prime Video, fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, Amazon Prime Video with Ads
- The Once Upon a Time in the West is featured in the top rankings of 1968
- #2 in Top Drama Movies of 1968
- #1 in Top Western Movies of 1968
As the railroad builders advance unstoppably through the Arizona desert on their way to the sea, Jill arrives in the small town of Flagstone with the intention of starting a new life.