Trivia: When we see the "regulators" riding over the hill on the way to kill Django and Schultz, if you look carefully at the right-center portion of screen, you can see one of the stuntmen fall off his horse and the horse continues to run down the hill without him. To make matters even worse, it appears the stuntman rolls right in front of another horse and gets trampled. (00:41:00)
Trivia: "Bombur" doesn't have a single line of dialogue in the movie.
Trivia: Comedic actor Thomas Lennon has a small role as the doctor Bruce sees for a check-up before he visits Gordon. Lennon previously played a similar role in director Christopher Nolan's "Memento" (as the doctor the character Sammy Jenkis visits). Lennon stated that Nolan specifically wanted him for the role of the doctor in this film, and has speculated that perhaps Nolan considers them to be the same character.
Trivia: The missiles fired by the alien ships are the same shape as the pegs in the board game.
Trivia: Katniss Everdeen and Peeta Mellark are the only Hunger Game tributes ever referred to by their first and last names. The other tributes are just identified by their first names, even when they're being introduced by Caesar Flickerman during the televised interviews or their scores are being announced on television.