Revealing mistake: When Julie is running around the city whilst all the extras are stood frozen, there is a moment where she is walking next to a small park, before beginning to turn right and run down a road. Once she runs onto the sidewalk after running down the road, two girls can be seen stood on the same sidewalk holding hands. The girl on the right can be seen moving her right hand ever so briefly, even though the extras are all supposed to be standing completely still. (00:54:35)
Continuity mistake: The angle of the laptop on the kitchen table changed (and no-one was close enough to have moved it). The laptop was initially more evenly aligned with the edge of the (round) table. A little later, the laptop was not visible, but probably should have been. (00:04:09 - 00:04:44)
Revealing mistake: In a sudden downpour, "rain" falls vertically, across a single line. (00:18:28 - 00:19:44)
Other mistake: The issued sidearm for the Spanish National Police is the H&K USP 9mm Compact, which has a capacity of 13+1 bullets, and the Civil Guards' is the Beretta 92fs/M9, which is a 9mm and has a magazine capacity of 15+1 bullets. As of 2020 the Beretta is being phased out for the H&K USP C. The police officer fires a total of 5 bullets from his Beretta then the slide locks back because its dry. He has no magazines for reloads either. I highly doubt the Spanish police issues 5 bullets to their officers. (00:33:00 - 00:35:30)
Plot hole: When Alana is backing up down the hill after running out of gas, she passes a single story house on the left which has an obvious motion detector light on the front of the house that triggers the light to turn on as her truck passes by. Motion detectors of that type were not around in the seventies.
Continuity mistake: The police officer stopped his cruiser some distance behind Malik's SUV, but the cruiser was closer to Malik's SUV when the officer was talking to him and when he pulled his gun on him. (00:19:27 - 00:21:55)
Other mistake: After seeing Joe Montana play in Super Bowl XIX, young Kurt said, "I knew I wanted to be that guy." When he goes outside to pass the football, young Kurt has "Warner 13" on the back of his jersey - not Montana's #16 but the #13 that he could not know in advance that he would eventually wear during most of his adult career. (Jersey numbers are not necessarily that available for a player to have his pick). (00:02:02 - 00:02:33)
Suggested correction: This is trivia at best, certainly not a mistake. While it's true he wore #12 in high school, there's no reason he couldn't have liked #13 as a child. And, many key position players do get to pick their number, from the available range, which Kurt certainly did.
Other mistake: Packie arrived at Frank's garage on a bicycle, wearing a brown coat, hat, gray hooded sweatshirt, patterned shirt, and a T-shirt. Swaino arrived on a motorcycle, wearing a tight jacket, no hat, black gloves, and black jogging jacket with white trim. When they were outside by the grill, they had large sweaters over their coats. It isn't known where these sweaters came from. It can be assumed the blanket Swaino used at first was from Frank's garage, but the sweaters did not appear to be Frank's. (00:25:32 - 00:37:35)
Continuity mistake: At the Internet Store, Spencer was told his house was "right outside" the service area, internet was not available, and a satellite would not work. At the Phone Store, Chad told Lynn and Zoe they were in the "dead zone." When Lynn answered Spencer's call by putting her head out the upstairs window, she said, "The service is great up here." Lynn and Zoe could listen to the news on their cell phone in the kitchen and Zoe read about asteroids just outside the front door. Internet worked? (00:04:53 - 00:28:00)
Other mistake: Mike said, "I don't feel too good [sick from drinking Mexico's "dirty water"]." Rafo responded, "Run! It's gonna come out" and Mike walked into the weeds. Mike apparently "forgot" about his impending diarrhea because he was able to run up to the road behind Rafo when their car was being stolen. (00:41:59 - 00:44:00)
Continuity mistake: When Tom knocks down the bike at the car, the position of the fallen clothes changes between shots.
Continuity mistake: At the restaurant, the background varies a few times behind Beth and Jack seated at a table. When the background is blurred, a young man can be seen to the left behind Beth, but he is not there when the background is clear. (Despite the different camera angle, he should still be visible.) Instead, two men are seated at the bar counter or an elevated table and a woman behind them is facing the screen. (00:11:47 - 00:12:49)
Other mistake: When the helicopter was flying toward and over Apex Island, the helicopter (as well as the similarly-sized box) was about 1/10 or 1/12 the width of the island. In the next view, from almost ground-level, the helicopter was about as wide as one pine tree. (00:10:30)
Factual error: Sassoon's Military Cross medal is shown ending up thrown in the Mersey and sinking. In his own words from "Memoirs of an Infantry Officer", published in 1930 - "I ripped the MC ribbon off my tunic and threw it into the mouth of the Mersey. Weighted with significance though this action was, it would have felt more conclusive had the ribbons been heavier. As it was, the poor little thing fell weakly on the water and floated away as though aware of its own futility."
Audio problem: Obviously, the mouth movements won't match the English voice-overs, but when Yang Hao is singing "Happy Birthday" to his daughter Yuan Yuan, his mouth doesn't move at all. (00:05:50)
Character mistake: The interviewer pointed out that Evan [Mark Wahlberg] is a "smart guy" and another man later said, "Homeboy knows everything. He's a freak." When Evan was telling the interviewer the circumstances under which he assaulted a man, Evan committed a basic grammatical error - a misplaced modifier: "I asked him to leave politely." Evan didn't mean he wanted the man to leave in a "polite manner"; he meant he "politely asked" the man to leave. (00:09:20 - 00:14:00)
Plot hole: Kyle got a flat tire and there was no cell phone reception to call for help, so he and Julia decided to walk to the Ghost Town. However, almost all vehicles - especially a relatively new SUV like Kyle's - have a spare tire. Kyle surely had a spare and could have at least tried to change the tire himself. (When Kyle saw his damaged tire, he complained that it was a $300 loss, not that he did not have a spare tire with him). (00:04:55)
Character mistake: When Tony is talking to the Biancis and others, he refers to victim Kevin Turner as "Kevin Grant" at least two times. (00:44:50 - 00:46:27)
Revealing mistake: After Charlie talks to Emma in Francine's old bedroom and is standing in the doorway, the background (segment of the hallway) is obviously fake. Shown are less than five of the top steps on the staircase, only a fraction of the size of real steps. The lower section of the banister is also a reduced size. (01:31:35)
Deliberate mistake: The "Sixth Street Coffee" surveillance video footage of Zara disarming the barista's determined ex-boyfriend was different from the actual event when shown on Audrey's cell phone (recorded from TV news). The most obvious difference was that Zara never held the gun with both hands behind her and making a circular motion over her head before aiming at the man she had kicked to the floor. (00:08:10 - 00:09:45)