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: 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: During the ultra quiet segment, a sailor tightens a bolt in the torpedo room, he has 2 hands on the wrench, but as the shot changes, one hand is now on the torpedo. (01:03:20)
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: The Stalker, "Shrike," is a persistent hunter, but not terribly quick on his feet. He's sort of a lurching, Frankenstein-like cyborg who is always pursuing Hester Shaw at about walking speed. When Valentine frees Shrike from Sharkmoor prison, miles out to sea, we see Valentine in his airship destroying the prison and we see Shrike's prison cell sink to the sea floor. This cuts to a long distance shot of the prison exploding and sinking in the far background, miles away, as Valentine's airship comes sweeping from the far background into the foreground and out of frame. Almost immediately, Shrike emerges from the surf in the foreground and slowly trudges ashore, implying that he somehow travelled miles across the sea floor just as swiftly as did the airship, in a matter of moments, despite his slow, lumbering gait. (00:47:40)
Continuity mistake: Constance is hugging Mary. In the close up shot, Constance is wearing a round sky blue earring. In the long shot, the earring is not seen even though her ear is fully facing the camera. (00:27:45)
Continuity mistake: Ron Perlman and Famke Janssen are having dinner on his supposed birthday. The whole meal has several continuity errors, with her fork being at different heights, sometimes replaced by the wine glass, etc. (00:34:30)
Continuity mistake: Dan set his lighter on top of the pack of cigarettes with their bottoms flush, but a close-up showed the lighter at an angle with one corner protruding past the bottom of the pack of cigarettes. (00:04:52 - 00:05:28)
Continuity mistake: Mrs. Marsh carries two plates with food to the table and starts to place the plate in her right hand in front of Mr. Marsh, but when the camera shifts, she is placing Jonathan's plate in front of him (and it appears she is doing so with her right hand, not the left hand she was holding Jonathan's in). (00:35:54)
Continuity mistake: The main character is exercising in the gym and in the background is a man on the abs machine holding the handles above the grips. In the next shot he is holding the grips, and then next shot back to above the grips. (00:38:00)
Continuity mistake: The police shoots one of the kids who were robbing the Nurse. The body is lying on the sidewalk when she says "No, no, I can..." to them holding her at gunpoint, but when Batista kicks the cops around, the body shifted further to the middle of the road - where it should have been to begin with. (00:32:50)