Despite the name similarity, the film is not a part of Sergio Leone's Dollars trilogy.
On release in the United States, several of the cast members and production team had their names changed for the English audience.
Some parts of the soundtrack, composed by Francesco De Masi, are featured in the videogame Red Dead Revolver.
Jerry grows up to become an evil man who kills his fiancée Sybil when she threatens to disclose his plans for a robbery.
When the son comes to avenge his ”father,” Johnny tries to disarm him, but Jerry is accidentally killed without learning the truth.