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Other mistake: What Lucas supposedly did to one of his teachers at his previous high school (Paul Garrett at Milton High School in San Francisco) is far-fetched. Paul told Mr. Butler that Lucas also blackmailed him for an 'A' by videotaping him in his house drinking alcohol with an old friend. Lucas hunted down Paul's old friend (how would Lucas know about this friend?) and paid him to get Paul - a recovering alcoholic - to start drinking again (how would Lucas know that his teacher was an alcoholic, eight years sober?). Moreover, it doesn't make sense that someone's old friend would accept money from a teenager to get his eight-years-sober friend to drink. Lucas may be clever and conniving, but he was still a kid - someone educated adults should be able to outsmart... or at least not get duped by him.

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Other mistake: Mr. Butler told Principal Fermont that he'd like to talk to Mr. Ward about Lucas, and she gave Mr. Butler Lucas' home address. Mr. Butler went to Lucas' home without notice more than once and even went upstairs into Lucas' bedroom after Mr. Ward - a lawyer - told him to leave. If a teacher wants to talk to a student's parent, the parent would be asked to come to the school for a conference.

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Factual error: Mr. Butler called the school that Lucas previously attended and was able to acquire contact information for a former teacher (who longer worked at that school). This type of information is not given out.

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Stupidity: Principal Fremont did not even consider the possibility that what Mr. Butler was saying about Lucas could be true. She basically laughed it off ("dismissed" it as absurd). On different occasions, Mr. Butler tried to tell her that he didn't think Lucas was who he pretended or appeared to be and that Lucas was blackmailing him for an 'A' in his English class. Because all of Lucas' grades from his previous school were 'A's, the Principal took for granted that they were legitimately earned despite Mr. Butler's concerns. A school Principal should be willing to at least look into Mr. Butler's accusations against Lucas, not merely blow them off as false. [The fact that Mr. Butler could not be more convincing is also problematic.].

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Character mistake: It is highly unlikely that the recipient of Mr. Butler's application for the professorship position would not only call him so soon, but ask him to come to her office right away (where she would humiliate him for the things he wrote in his essay on "qualities that make me a good teacher"). Moreover, her failure to listen to Mr. Butler and give due consideration to his assertion that someone else actually wrote those offensive things showed poor judgment, especially since she knew the person who referred Mr. Butler and spoke highly of him. Someone tampering with his application would make more sense than believing that Mr. Butler actually wrote those things that criticized the very college he was applying to and boasted so much about himself. That Mr. Butler was not able to say more to make his point believable is also problematic. He is an English teacher, so should have the vocabulary and mastering of techniques to make a convincing argument, but he failed to defend himself.

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Plot hole: It seems highly unlikely that Lucas would be able to "mess with" Mr. Butler's application for a professorship position, or be able to accomplish what he did in such a short amount time. Off-screen, Lucas went into Mr. Butler's briefcase (foolishly left on his desk in the classroom during lunchtime) and (correctly) assumed Mr. Butler's application was on his laptop. Lucas would have to be able to figure out Mr. Butler's password (something that could take forever), find the right file on his laptop, read or scan the application to determine what he could do to mess it up, write a new answer for "qualities that make me a good teacher", and leave the classroom before anyone saw him. Lucas would also have to assume that Mr. Butler would not notice the change when he printed the application, made a photocopy, and double-checked the application before inserting it in the envelope and mailing it.

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Character mistake: Mr. Butler leaves his briefcase (containing his laptop) in his unlocked classroom during lunchtime. There's no rational reason to not take his briefcase with him to the teacher's lounge beyond furthering the plot.

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Stupidity: Becca was presented as a good student (earned an 'A' in Mr. Butler's class) and intelligent person yet was easily fooled and influenced by Lucas to pursue her English teacher, Mr. Butler, romantically. Even after Becca (under direction from Lucas) went to talk to Mr. Butler after class, and she made Mr. Butler uncomfortable, she followed Lucas' advice to try again. After Mr. Butler made it clear to Becca that he was her teacher, she was a student (and child), and told her to leave, Becca still went along with Lucas' suggestion that she write Mr. Butler a letter/love note.

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Stupidity: Lucas was called to the Principal's office a few times - including two times when a police detective was present - but his father was not contacted or asked to be present during questioning. The last time Lucas was in the office, he was told "You're expelled" and to go home. Even though Lucas drove a car to school, this is no reason to send him home without contacting his father (who was home at the time). Moreover, at least Mr. Butler was aware that Lucas' father was a criminal defense attorney. The school and the police detective should have handled the situation more professionally and done things "by the book" to avoid a lawsuit. [It is possible that Lucas was 18 and an adult, but even adults should have an attorney present.].

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Stupidity: While Mr. Butler was upstairs taking a shower, Lucas goes into his house, kills his wife, and takes the baby to the school (into Mr. Butler's classroom). Lucas wanted to take away Mr. Butler's family, so all he needed to do was also kill the baby at the house (or leave the dead baby outside on the porch for Mr. Butler to panic while searching). Lucas could have left the house without getting caught for committing a double murder; instead, he keeps the baby alive and assumes Mr. Butler will know he took the baby to his classroom. (01:17:53)

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Continuity mistake: The amount of dirt on Neil's face is inconsistent. When he is lying on his stomach, there appears to be a line of dirt along his jaw line. A little later, he has three lines of dirt on his cheek - like someone used a dirty finger to smear dirt vertically halfway down his cheek, then make a diagonal line of dirt partially overlapping, followed by an almost horizontal line across the bottom of his cheek. Also, the sunburned forehead, face, shoulders, and "V-neck" that Neil has before he gets up is largely gone thereafter. (00:04:32)

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Continuity mistake: The amount and location of dirt on Christine's face is inconsistent, ranging from being very thick and obvious to barely visible, if at all. Sometimes it extends down her neck on the right side. When her hair covers most of her face, no dirt is visible - until she turns her head and the hair is away from her face. The intensity and location of the redness on her neck also varies. (00:03:31 - 00:04:48)

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Trivia: This is the sequel to "After" (2019).

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Other mistake: Mike asked Carol where his checkbook was because he needed it to buy her a Christmas present. Carol pulled open the kitchen drawer she was conveniently standing next to, got the checkbook out, and handed it to Mike. A little later when Carol is telling Peter about her secret plan, she points out that she will be using their (Carol and Mike's) "special savings account." There would be a separate book for making deposits/withdrawals from the savings account, so it doesn't make sense for Mike to be using regular checking account to buy the present. (00:03:06 - 00:05:34)

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Other mistake: The grade report that Lucas received in the mail indicated that they were "Final Grades" (Sixth Cycle). When Detective Speck asked Lucas why he thought Mr. Butler believed he "had it out for him", Lucas responded that he was trying to figure that out but it had been "ever since he gave me an 'F' on my midterm report card." Also, now that instructors in many/most (all?) schools submit grades on-line, students are able to view their grades on-line and hard copies of report cards may no longer be sent to students or parents via USPS. (00:51:15 - 01:03:38)

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Character mistake: In Principal Fremont's office, Lucas was asked why Mr. Butler thought that he "had it out for him in some way." Lucas responded that he was trying to figure that out himself and added Mr. Butler gave him an "F" even though all of his assignments were "A's." Principal Fremont replied, "Lucas, I don't want you to worry about your grade, okay? I will personally see to it that you get the "A" you deserve." This is not something a principal would say to a student, or say without first checking with his teacher to verify his grades and ascertain if there was a legitimate reason for issuing the "F." (01:03:50)

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Other mistake: Rachel drives a Volvo V-90 (wagon) and Tom has what appears to be a Ford 4x4 Supercrew with a large black metal grille guard. (Distinguishing features on the truck are absent except for a small Ford logo largely hidden by the grille guard; even the area below the dashboard is blackened.) Tom rammed his truck into the rear end of Rachel's Volvo several times. The first bump was not very hard, but the next four were. The top of the grille guard is high enough to reach the bottom of the cargo window but the window did not break. There should still be extensive damage to the rear end of the Volvo. Viewers do not get to see the rear end immediately after it was rammed (00:33:49), but there is a quick rear end view later. The Volvo has a soccer ball-sized dent on the right side by the tail light and a few small black scrapes on the bumper. This doesn't match the damage that would be expected, and - more significantly - the Volvo already had that damage BEFORE being rammed by Tom. (00:24:07 - 01:01:45)

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Factual error: Near the end of the movie, a front view of the overdosing/overdosed twins shows Robert putting the dying twin's head on his lap. A close-up of the dead twin shows blood covering most of the left side of her face and a blue tinge on most of the right side, apparently meant to indicate developing livor mortis (bluish color after death). This twin just died, so it is too early for livor mortis to be visible. Livor mortis is not visible to humans until about two hours after death, but the process does begin sooner (about 20-30 minutes after death). Moreover, the writer failed to show the first stage of death - pallor mortis. The twins were Caucasians with blonde hair, so the dead twin would first turn pale (from blood draining from veins in the skin) about 15 minutes after death. The sudden oozing of blood from the dead twin's forehead was also not an accurate portrayal - she was dead, so her heart no longer pumped blood (so gravity takes over, draining blood). (01:39:58)

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Other mistake: An aerial shot of the woods is green instead of showing Fall foliage. When they are leaving, there's just as much - if not more - green leaves on trees than when they got there and it is after Thanksgiving (late November when there should be Autumn foliage, if any, on the trees). (00:18:29 - 01:24:13)

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Other mistake: Isaac was able to break through his wrist restraints (taped to arms of a chair), escape two androids, quickly find and escape with Sara (while other androids started pursuing) - during a "full security lockdown" in a facility previously unknown to him. Isaac would not know the building's layout or where doors - and an exit - would be, but he had little problem getting out during lockdown while numerous people and androids were chasing him.

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