Continuity mistake: When Sister Irene's habit is ripped at the back, you can see a bra strap on her left shoulder which disappears when she is seen at the front and when the camera is closer to her back (when she has the pentagram carved into her).
Continuity mistake: During the getaway in the 4-door olive-green BMW, in one shot, the driver's headrest is bent forward; in the next shot, it is shown back in the straight-up position.
Continuity mistake: Jimmy Silva's Hk416 has one surefire M300 scout light on the right hand rail (3 o'clock) throughout the movie, but when he enters the apartment complex he all of a sudden has two flashlights on both left and right rails (9 and 3 o'clock). About 30 seconds later when they begin to engage it goes back to one. (01:08:30 - 01:09:05)
Continuity mistake: When Ana and Christian are having sex on the dining room table, she drops Christian's pants below his butt. Scene cuts and Christian's back is shown, with his pants above his butt. Then cuts back and they're below again. (00:54:40 - 00:56:50)
Continuity mistake: When McCall is about to have the fight in the hotel room, the man who answers the door goes and locks the door right before the fight begins. When McCall is done with the fight, he turns the doorknob and walks out without ever unlocking the door.
Continuity mistake: When she is in the boat she takes off her blindfold entirely, but after some talking the blindfold is around her neck all of a sudden.
Continuity mistake: After Elizabeth drives her motorbike off the peer, across the frozen lake and stops while she looks back at the police, the Ducati suddenly has different tires than earlier in the escape sequence. (00:25:55 - 00:27:05)
Continuity mistake: When Newt is straddling Thomas with a knife pointed down at his upper left chest, it's very obvious that the knife goes into his chest, through Thomas' shirt. A few minutes later, when Thomas is kneeling over Newt, after Newt stabs himself in the chest, the stab hole in Thomas' shirt is no longer there and he isn't bleeding. (01:50:45)
Continuity mistake: Spoiler alert: At the end of the movie "Rose" stabs "Miles." We see her pull out the knife and it looks like a Rambo-type hunting knife. After she stabs him, we see the knife covered in blood but it is a different type of knife. It looks more like a skinning knife or filet knife.
Continuity mistake: While Casey and Morris are video calling, Casey is holding the iPad perfectly and then suddenly it turns upside-down in a later shot. (00:13:35 - 00:14:42)
Continuity mistake: This mistake is apparent after watching A Quiet Place 2. At the start of the movie when the family are at the store, a New York Post is visible on the newsstand with the headline "It's Sound." This would suggest that the invasion didn't hit the town immediately and that they had time to have newspaper deliveries and actually put them on sale. However, in the second film, it was evident that civilisation was pretty much destroyed on day one.
Continuity mistake: The clock time on the top right of the laptop screen near the start changes from Sun 17:59 to Sun 16:00. (00:08:39)
Continuity mistake: When Beaman arrives at Polyarny we see him swivel his cap round as the camera changes. But in the new shot he's got binoculars up to his face. (00:38:40)
Continuity mistake: When young Tiffany is eating ice cream at a restaurant, the amount of ice cream left in the clear glass bowl increases after she eats more. The ice cream in the bowl starts out being about half-full, goes down to less than one-fourth, and returns to about half-full again. (01:02:47 - 01:03:19)
Continuity mistake: After a camera shift while talking to Mr. C, Chris' jersey was pulled down more over his pants (lap), but his hands were pre-occupied playing with the string on his hooded sweatshirt. (00:06:35 - 00:06:58)
Continuity mistake: When Riley's boss says he's giving her extra hours and she's closing, Riley looks down to the side in her close up. When the camera cuts again as he walks away, she's suddenly looking up straight ahead towards him as he walks. (00:08:40)
Continuity mistake: When Sophia is talking with Rachel after she brings the proteins, Sophia's fingers on her cheek swap between extended or bent between shots.
Continuity mistake: The middle curtain on the passenger side of the RV is pulled open to different extents (toward the sides) when Drake is snooping around. Depending on the camera's view, maybe a foot of the curtain can be seen to the right. The other views show much more of the curtain, indicating it is not pulled to the side as far (and might possibly be closed). When a larger amount of the curtain is showing, there is also a small section of a pleat partially on the sill. (00:04:00 - 00:04:27)
Continuity mistake: When Lukas is looking in the bathroom mirror, the upper half of his laceration looks about three times the width of the lower half. When he exits the bathroom, the laceration looks like one line with the same width. (00:15:45)
Continuity mistake: Earl shoved the stacks of $100 bills back into the envelope and appeared to put the envelope back into the console with his right hand, but when the camera shifted, Earl was holding the envelope in his left hand with the stacks of $100 bills partially pulled out again. Earl put the envelope of money into the console a second time, but with his left hand. (00:36:05)