Trivia: The P-51 Mustang that "Maverick" Mitchell flies in this film is actually Tom Cruise's own airplane.
Trivia: Miles Bron's dining room features several paintings, from the most famous painting in the world the Mona Lisa to others, sometimes with garish self-insertions of Miles himself. One of the paintings is Mark Rothko's Number 207 (Red over Dark Blue on Dark Gray), which Rian Johnson explicitly asked to hang upside down - a hint to the fact that Miles is kinda clueless. (00:41:20)
Trivia: The film's working title was "Vengeance."
Trivia: The first film Colin Farrell's pet donkey "Jenny" has appeared in, making her a "diva", according to Farrell. Her real name is also Jenny - the name was kept to help her react to commands. She kicked Colin Farrell at one point when he was trying to feed her.
Trivia: Winston Duke's line "you bald-headed demon" was improvised.
Trivia: Although he was nominated for the Golden Globe Best Actor in Drama (in The Whale), Brendan Fraser chose not to attend the Golden Globe Awards, as he alleges that in 2003 he was sexually assaulted by a member of the Hollywood Foreign Press, the body behind the Globes' nomination and voting processes. That incident, along with some health issues, largely derailed his acting career.
Trivia: When one of the Comanche warriors is fighting the predator, he gets thrown over a large log. He lets out a Wilhelm scream. (00:51:33)
Trivia: When Michael and Milo battle for the first time, you hear Milo repeatedly chant "Michael, Michael." It's probably my own cerebral connection, but I can't ignore the funny reference to the Lost Boys (1987) in which the main vampire (brilliantly played by Kiefer Sutherland) also chants 'Michael, oh Michael' to Michael Emerson (Jason Patric), Sam's (Corey Haim) brother, when Michael is slowly turning into a "sh*tsucking vampire" .
Trivia: Chris Hemsworth, who is a producer of this film and also is married to star Elsa Pataky, has a cameo as the guy in the electronics store.
Trivia: In Roslyn Anderson's 4/04/22 WLBT.COM article, "Bruce Willis Showed Few Symptoms While Filming 'A Day to Die', According to Movie Producer", the producer stated, "There were a few times where we saw that [manifestations of Willis' aphasia]." This seems like a gross understatement. Watching the movie, Willis' character Chief Alston has very short lines, many/most of which are off-screen, cutting away to briefly show another character (similar to lines delivered by young children).
Trivia: Chris Parnell is only 13 years older than his on-screen daughter, Rebel Wilson.
Trivia: * "Quasi-Spoiler" * The mental or nutritional disorder wherein a person [or some animals, including dogs] eats/craves substances or objects that are not usually deemed to be "food" (or edible) is called "Pica." The word "Pica" is derived from ancient Latin and the bird "Magpie." Magpies have a reputation for eating almost anything/everything they can find, or have "indiscriminate tastes" and habits. Brecken, in this future world scenario, probably would not be diagnosed as having Pica. (00:03:28)
Trivia: When Geppetto's cuckoo clocks first start ringing, the first one features Woody from Toy Story who was voiced by Tom Hanks who plays Geppetto in this film. The second one features Roger and Jessica Rabbit from Who Framed Roger Rabbit - directed by Robert Zemeckis who also directed this film.
Trivia: Spoiler! There is an extra scene at the end after the credits roll with Amenza paying tribute saying the names of the fallen Dahomey warriors one by one.
Trivia: Narrating in 1969, Kya said, "How birds sing mostly at dawn because the cool, moist air of morning carries their songs and their meaning much farther." This is no longer the primary view. Some scientific research found their subject sparrows' songs were louder (or just as loud) at noon than during the so-called "Morning Chorus." It appears the "Morning Chorus" might just sound louder because there are fewer other sounds at that time of the morning to drown them out (i.e, it is quieter). (00:37:15)
Trivia: Mike asked the Sheriff, "What flavor of ketchup?" and the Sheriff replied, "Heinz 57." Heinz 57 is not a flavor of ketchup and, contrary to popular belief, it did not reflect the number of varieties of condiments Heinz had for sale when the company started using the logo - which is what it actually is, a logo. There is an account of how the logo came to be. The Brand Director for Heinz reported that the 57 actually stands for his (5) and his wife's (7) "lucky" numbers. (00:44:55)
Trivia: Nicole Kidman is only nine years older than her on-screen son Alexander Skarsgard.
Trivia: In France, when Mr. Carson and Lady Maude are in the hat shop, the clerk mistakenly refers to them as being married, which surprises and embarrasses both. This is a movie in-joke regarding actors Jim Carter (Mr. Carson) and Imelda Staunton (Lady Maude), who are married in real-life.