Trivia: Actor Neville Brand who kills Elvis at the end of the film for years had young girls come up to him on the streets and yell at him, "You Killed Elvis!"
Trivia: Even though Katy Jurado plays Pina Pellicer's mother in the movie, she was only 10 years older than her.
Trivia: When Eli and Solara are in his room for the night there is a movie poster on the wall behind them for a similar post apocalyptic movie. "A Boy and His Dog". In Eli the survivors protect themselves from the sun's rays and in "A Boy and His Dog" they flee underground to hide from the sun.
Trivia: When a rider is speared in the back by an Indian, he yells the Wilhelm scream.
Trivia: Jack Palance won the Academy Award for Best Supporting Actor for his role as Curly, even though he only has 12 minutes of screen time.
Trivia: In addition to portraying and voicing the eponymous 7 Faces (Dr. Lao, the Abominable Snowman, Merlin, Appolonius of Tyana, The Giant Serpent, Pan, and Medusa), actor Tony Randall also appeared without makeup in a two-second cameo, as a solemn spectator in the crowd, for a total of 8 roles in the film.
Trivia: The band leader in the saloon bar is the film's composer Eric Rogers.
Trivia: In the original cut, Yosemite Sam says after introducing himself, "I don't mean Mahatma Ghandi." After the death of Ghandi in 1948, the line was changed to "I ain't no namby-pamby." in the cartoon's re-release.
Trivia: Liberty Valance's last poker hand is, appropriately, aces and eights. (01:30:10)
Trivia: Anthony Quinn plays Craig Belden, the father of Rick (Earl Holliman). In real life, Quinn was only 13 years older than Holliman.
Trivia: This movie takes place in Canada, but was actually filmed near Big Bear Lake in Southern California.
Trivia: Director John Huston has a cameo as the white-suited man who gets increasingly irritated when Humphrey Bogart repeatedly begs him for money.
Trivia: The scene where Quigley triggers a booby trap by swinging his rifle from horseback, at full gallop, whilst holding it by the tip of the barrel with one hand, was only possible because an alternate aluminum barrel was created for that scene.
Trivia: This was John Candy's last film he made. He unfortunately passed away in his sleep before filming wrapped up. Re-writes and stand-ins were used to finish the film. Candy had finished filming "Canadian Bacon", but "Wagons East" was released 13 months before "Canadian Bacon."
Trivia: When the cows push Junior down the mine shaft, a "Goofy Holler" can be heard.
Trivia: Although they play mother and son, Katy Jurado was only six years older than Robert Wagner.
Trivia: While Morton's private train plays a key role in the movie, and the train moves several times, the train's engineer and fireman are never shown, nor is any reference ever made to them.
Trivia: When Sergeant Snow thrusts his sword into a horse rustler, he yells a Wilhelm scream.
Trivia: The boots Clint Eastwood wears in this film are the same ones he wore in "Rawhide".