Other mistake: In the frame you can see the girl is playing on a newer Macbook, she is using a wired headset but the headset is not plugged into the laptop, you can also see she is using a wired gaming mouse, and the USB cable is just sitting there not connected to anything. The Macbook is USB-C only and the mouse is USB-A.
Other mistake: Rayburn pulled an arrow out of his chest - and without much blood gushing out. The rather small amount of blood on the towel and Rayburn's ability to go about business as though he had not been injured is unrealistic and absurd. (00:27:00)
Other mistake: A crow crashed into a bedroom window, causing a small hole in it with radiating cracks. There was blood splattered around the hole as well as two long downward/ vertical lines of blood. Although it is possible for a bird to crack a window, it is much more likely that a bird breaks its neck without causing damage to the window. In the event that this crow did put a small hole in the glass, at least some fragments of feathers should have been stuck around the hole, but there were not any. (00:06:55)
Other mistake: The scraping sound is not coming from the man "scraping" his windshield. The snow is easily brushed off and there is no icy coating below the "fluffy" snow to realistically produce the sound of scraping ice off a windshield. (00:00:35)
Other mistake: The entire movie takes place during the overnight dark hours. Limited lighting from the car and flashlight somehow manage to illuminate faces, photos, signs, etc. Filming in the dark surely has its challenges, and there has to be a proper balance between lighting and ability of viewers to see what is happening. The "convenient" lighting would be a "deliberate mistake" except for one factor: A full moon (highly illuminated) is shown without radiating the light expected from a full moon. (00:26:25)
Other mistake: Near the beginning of the movie, John's neighbor, Ed, is standing behind a wooden fence that is diagonal across the screen. The fence behind Ed is straighter. The angles of the fences indicate they are too close together - perpendicular sides of fences do not form a "V." Also, two BACK sides of fence are shown. Since Ed is within the fenced area, it is his (not John's) fence and the front ("good") side of the fence should be facing John's yard.
Other mistake: When Mike goes through Isabel's file, it says that she escaped prison on April 10, 2019. However, the scene is set on August 22 of the same year, 2019 (it says the date right there as it checks "the last 2 months" of phone calls with Dorn). Mike was shot at least 6 months before (it says "six months later" in the wedding scene, which is where he makes his reappearance after the shooting scene, possibly more time passed). Mike was shot only after Isabel got out of prison, so that's impossible. (01:24:30)
Other mistake: If Grace had Billy at age fifteen (without his father in the picture), has worked as a receptionist in a law firm, and undoubtedly had been missing a lot of work due to her failing liver, her house and furnishings would be well beyond her means.
Other mistake: Numerous students with large amounts of blood splattered on them from three students in the classroom "exploding" and others "popping" while going down the steps were able to go through the door - some rubbing their shirts against the doorframe and others touching the doorframe with their hands - without smearing blood on the door or frame. (01:01:51)
Other mistake: After Jim shot the doe and found it lying in the snow, there were no visible deer tracks or dripping blood trail leading to the doe. (00:01:25 - 00:02:05)
Other mistake: Matt told Joey that they could not go back to see if the guard was OK in the hole because as soon as Ms. Dillard gets home she will know she was robbed and will call the police. Joey's act - breaking into a house with the intent to commit theft - is more accurately classified as a burglary, not robbery.
Other mistake: Based on where Carol is standing near the top of the stairs of her new apartment, more of the couch behind her should be to the left of the screen (like it is in a later shot). (00:48:10)
Other mistake: Bo walks through the charred corn field, but her shoes do not get sooty. When she finds Eden's flower ring, the flower petals are intact, but should be burned beyond recognition. (01:25:18 - 01:25:39)
Other mistake: The time freeze dome extends well beyond the little Italian square and covers the surrounding buildings as well. Everybody and everything is paralyzed/suspended, but a gramophone in a window looking directly at the square continues to play. (00:34:03)
Other mistake: The woman was impaled by two stakes, one through her chest and one through her right shin. The man pulled her out of the hole from the edge at an angle to her left side. From this position, he could not have initially kept her body parallel to the ground or subsequently pulled her up at an angle without causing additional injuries or death. (00:14:33 - 00:14:55)
Other mistake: On 22's name-tag wall some of the names repeat themselves. Yossi Mizrahi and Itay Cochabi can be spotted twice, once towards the center and once towards the right side of the screen. There might be more.
Other mistake: The opening credits show a bit of Ava's rather extravagant biography. She is involved in a DUI accident that kills two people; the news article says that it happened "early Thursday morning." What follows is a police photo labeled 06/27/95, a Saturday. Then we see the police report; not only the incident time is 10:30 PM, but the date is March 15 1999, which was a Monday. It is not separated incidents, since the police photo is then shown again, next to the "Thursday" article (and the fact described in the article is life-changing). (00:08:10)
Other mistake: Jung-seok's nephew accidentally drops a ball which rolls away and lands in front of a nearby bed. When he walks over to get it, he realises that the man sitting on the bed has turned into a zombie. He is shown in a contorted position, with his back lifted off the ground and is heard making painful grunting noises. The other passengers in the cabin then realise there is a zombie in the room with them. It is extremely hard to believe that none of the other passengers in the cabin would have noticed this beforehand, not even by accident. This man's body was in a completely inhuman and unrealistic position, but it's not until the nephew walks up to him where people start to notice. (00:05:25)
Other mistake: In the scene with a leak in the kitchen, the woman fixes it by turning an isolating tap above the leak. However the water would have been travelling up the pipe to the kitchen tap and so that wouldn't have stopped the leak. (00:34:00)
Other mistake: "Sally" the Great White Shark rammed Emma into a rock (or other hard object) underwater and Emma only got a small cut above her right elbow. It isn't clear how fast Sally was swimming, but Emma was rammed with force (and appeared to hit her back). A female Great White Shark weighs about 4,000 or 5,000 pounds, so Emma would be expected to suffer a major (not minor) injury under the circumstances. (00:05:24)