Era uma Vez no Oeste

Henry Fonda originally turned down the role of Frank. Director Sergio Leone flew to the United States and met with Fonda, who asked why he was wanted for the film. Leone replied, "Picture this: the camera shows a gunman from the waist down pulling his gun and shooting a running child. The camera pans up to the gunman's face and...it's Henry Fonda" (until then, with one exception, Fonda had only been cast in "good guy" roles. Leone wanted the audience to be shocked).

Frank goes to Morton's train and finds that dead bodies are scattered around. But the train's fireman appears not to be bothered. The engine's safety valve opens frequently, which means that the fireman dutifully keeps doing his job and keeps the boiler at maximum pressure. (The fireman and the driver never appear in the movie, but they must be there.)

The opening credits appear over the three gunmen waiting at the train station.

The film title itself appears at the end of the film.

Frank's line upon giving Harmonica his namesake varies from version to version. The Italian translates to "play something for your brother," but the most common English version is "keep your loving brother happy," and the German translates to "play me the song of death." The German movie title was inspired by this line.

Edited into The Clock (2010)