At 37:46, Mary asks the meaning of "La tetilla del diablo." Ambrose lies and says it means "Welcome home wayward pilgrims." In truth it means "the devil's nipple."
Michael Parks, who plays Ambrose Bierce, also appeared in the original Del crepúsculo al amanecer (1996), playing a completely different character. His real life son, James Parks, had a small role in Del crepúsculo al amanecer 2: Texas sangriento (1999).
At 58 minutes, Razor sings "La Cucaracha" but substitutes his own lyrics "marijuana para fumar" (marijuana to smoke).
The subtitle of the film, "The Hangman's Daughter," is taken from the title of a short story co-authored by Ambrose Bierce (who appears as a character in the film) - "The Monk and the Hangman's Daughter," Ambrose Bierce and Adolphe Danziger De Castro, 1911.
George Clooney, who played Seth Gecko in the original Del crepúsculo al amanecer (1996), said the inspiration for his character's tattoo was taken from recently watching Somos guerreros (1994). The Hangman is played by Temuera Morrison who was one of the main actors in Somos guerreros (1994).