Factual error: Pope Benedict and Cardinal Jorge Bergoglio are hanging out in the room by the Sistine Chapel having a pizza and a drink together. The drink of choice is Fanta, apparently Joseph Ratzinger's favourite beverage. The scene is supposed to happen in 2012, but the label of the bottle is a more modern one, introduced in 2016. (01:34:20)
Factual error: Chucky murders his first (human) victim as he was taking down the Christmas lights, making him fall in the watermelon patch in front of his house. Shane must have an uncanny green thumb, to be able to have fully grown watermelons in winter.
Factual error: Parker is looking for the phone her mom hid. She is moving a box of cereals. The cereal ingredient label has a few joke entries you may Miss at first (goat hair, bitter almond paste, false eyelashes), but the nutrition facts tab is also incoherent in a way too subtle to be a deliberate joke; sub-categories of each macronutrients exceed the total. For instance, it has 5 g of Fat in total, but 25 g of Cholesterol and 56 g of Saturated fat (at most it could be mg). (01:00:25)
Factual error: A piece of ship that size crash landing into a planet and not being destroyed would be an extinction level event. The asteroid that supposedly killed the dinosaurs was a lot smaller.
Factual error: When Zapan speaks while his face is chopped off, the producers have failed to take into account the importance of mouth and tongue in producing speech. As a cyborg, Zapan could use speakers to produce a voice, but he isn't.
Factual error: In the flash back with Jesse and Walter, they are eating at the Owl Cafe. Outside, a mountain and dirt road can be seen, indicating they are out in some rural area in the desert. The Owl Cafe is actually in Albuquerque and is nowhere near a mountain or desert landscape. It is on one of the busiest streets in the city, surrounded by other businesses such as gas stations, restaurants, and hotels. There is another Owl Cafe in San Antonio, New Mexico, but that one looks nothing like the one in the flashback (it also isn't near a mountain and is surrounded by paved roads).
Factual error: Before the scene in the stable begins, John is pushed into the building by a series of cars cornering and ramming him. The order is given by two men speaking in Italian, but it's Italian with all the wrong cadence showing the words are not understood, and a pronunciation so bad words are barely recognizable - and wrong, like "Diteglie." (00:24:20)
Factual error: She fires the entire magazine of a Glock into the alligator's mouth. When it is empty, rather than the slide locking back and the trigger freezing, there is an audible click every time she pulls the trigger. This could not happen.
Factual error: A fire is raging in a hardware store. The sprinklers come on. After the fire is out, the sprinklers shut off. Without anybody shutting them off. That's not the way automatic sprinklers work. Once the fusible link melts, they are on continuously until manually shut off at the valve, usually outside of the building. (01:35:20)
Factual error: The family supposedly left Ex-Yugoslavia (what part isn't made clear exactly) "because of the war", but the only conflict still going on there in 1999 (when the family is still there in the opening scene) was the NATO bombing of targets in Serbia in order to get the Serbs to lay off Kosovo, and that was long over by Christmas of that year.
Factual error: In 1940 3 of Alf White's men are arrested. As they are taken out of the pub they were in Alf and his son stand in the doorway. To their left (viewer's right) are posters for Floyd Patterson (who would have been aged 4 or 5 at the time) and the Platters (formed in 1952) and Lonnie Donegan (started performing 1949). (00:20:03)
Factual error: In the antique shop, Woody is at a point where he's at the center of a tug-o-war between two sides, with the "bad toys" pulling on his draw string for his voice box. The voice box can still be heard spouting its lines, despite the fact that the tension on the string is never released allowing it to draw the string back in, which is what makes the sound. It can't make it's sounds with the string continually out in the pulled position.
Factual error: Mohegan Sun casino is in the state of Connecticut. Connecticut does not have legalized sports betting and did not have it in 2012, when the film is set, therefore Julia would not have been able to place Howard's bet.
Factual error: The royal parade is supposed to be of the Yorkshire Hussars, but the filmmakers instead borrowed the King's Troop, Royal Horse Artillery, complete with guns. Although the uniform was similar, the Yorkshire Hussars was a cavalry regiment until the Second World War, when it became an armoured regiment. It was never an artillery regiment.
Factual error: At presentation of the Medal of Honor, the US Air Force Secretary reads the citation that states William H. Pitsenbarger was an Airman First Class (E-3 with 2 stripes) but in the battle scenes William H. Pitsenbarger is wearing the insignia of a 'Buck' Sergeant (E-4 with 3 stripes). (00:14:29 - 01:43:55)
Factual error: There is a modern digital electric meter in the record store - not what it would look like in the era of the movie.
Factual error: Three details were omitted on the Miller's car's license plate: the month was missing in the upper left-hand corner; a "15" (2015) sticker was missing in the center of the plate; and, "Show Me State" was not written at the top below "Missouri." (00:16:46)
Factual error: Bobby's shotgun hit blasts a hole through the head of the first zombie entering the store, but the zombie directly behind it, as well as the barricade, are unscathed. The shells can hardly penetrate this much, wide and clean through the head and then disappear with no trace. (01:35:05)
Factual error: The Sheriff of the small town is wearing Sergeant stripes on her shoulder sleeves. If she was a Sheriff then no chevrons should be on her sleeves.
Factual error: This is set in 1966. The soldiers are all using the Aussie version of the M16 which was introduced in Vietnam by their military in 1967 with limited use and only became more widely used somewhat later.
Suggested correction: There's no such thing as an Aussie version of the M16, they were all made in the USA by Colt, or its contractors. I assume the poster means the M16A1, identifiable by the bolt assist lug on the right hand side and closed flash suppressor.