Trivia: Val Kilmer has been quoted as saying that screenwriter Kevin Jarre insisted the actors wear real wool costumes, in accordance with the time period. During the scene in the Birdcage Theater, Val Kilmer says, a thermometer was placed on the set, and it read 134 degrees Fahrenheit. Kilmer suggested jokingly that this was the reason Doc Holliday killed so many people: "It's just, like, he wore wool in the summer, in the Arizona territory, and that made him mad."MovieFan612
Trivia: One of the fans in the stands is actually Daniel "Rudy" Ruettiger. He can be seen in the last few minutes of the film wearing a dark colored coat with a thick, light colored collar/lapel. Seconds after the actor playing Rudy runs onto the field near the end of the final game, you can see the real Rudy sitting directly behind the actress playing Rudy's mother. Then about 15 seconds after the game ending tackle, the actor playing Rudy's father turns around and grabs the real Rudy by the coat collar/lapel, then slaps his chest in joyful celebration.
Trivia: Virtually all of the extras who play soldiers in the film were members of Civil War Re-enactor groups who not only freely donated their time but also supplied their own uniforms and equipment. This ensued that the film-makers did not have pay for their own extras and that they could stage the massive battle scenes without blowing the budget.
Trivia: When Steven is in Jason's house, we see the "Necronomicon", or "Book of the Dead" from the "Evil Dead" movies. He even picks up the book and flips through it. The director has said this is because Jason is a deadite, as his mother made a pact with the devil to bring him back from the dead.
Trivia: The guy who first follows Parrada and Canessa on their expedition to find Chile is nicknamed Tintin. In one of the most famous Tintin albums the cartoon hero goes to the Himalayas to find a friend who is reported dead after a plane crash in the mountains. Most likely a coincidence, but still notable.