Continuity mistake: Sean hands the "vegetable smoothie" to Stephanie holding it by the middle, which becomes the top in the reverse shot. (00:30:00)
Continuity mistake: The protagonist just approached Dennis Nylon; he asks her about the vintage scarf. Seen from behind, Stephanie's left hand is on the strap of the bag, but in the reverse angle her hand is down. (00:32:35)
Continuity mistake: Dennis Nylon partially undoes the knot of Stephanie's scarf, which is then for the rest of the scene adjusted in a more aesthetically pleasing way (less straight and flat) despite the fact that neither he nor she had a chance to do so. (00:32:45)
Continuity mistake: At the beginning of the scene inside the Dennis Nylon mansion, Emily is wearing her bag on the left shoulder. She sneaks her way inside the "employees only" area, loses her cover (the guy bringing clothes upstairs), still with the bag looking the same, but the moment she enters Emily's office in a rush, she is wearing her bag across the chest, right shoulder strap, bag on the left side. (00:34:00)
Continuity mistake: Inside Emily's office upstairs, Stephanie ducks under the desk when someone walks by. The floor is fully in the dark, and yet when she crawls to the drawers she tries to pick the lock of, there are distinct sunlit areas all of a sudden. (00:34:15)
Continuity mistake: When Stephanie sets the bottle in the wine cooler as the detective arrives, the label with the name of the wine in italics faces the camera. When she walks off and when the detective looks at the table with the close-up, the back label is the one facing the camera. (00:37:00)
Factual error: Detective Summerville tells Sean that his wife got a rental Kia from Budget paying in cash. But Budget does not allow the initial cost to be paid in cash; the payment must come from credit or debit card, cash can be used only as the last payment when you return the car. (00:37:30)
Revealing mistake: The protagonist broadcasts the description of Emily's car in her vlog. She then receives a mail from a mom in Michigan...or does she? Seems not, because if you look at the window of the mail open in Safari, she is on the Compose tab, not in the Inbox, with a Send message and format and style buttons at the bottom (and she is not replying to the message because the 'from' field is a "michiganmom381" gmail account. (00:39:20)
Continuity mistake: In the close-up of Sean's phone when the police calls, the time on the top of the screen is 11 AM. When barely 20 seconds later he is telling Stephanie that he's going to Michigan, the screen of his phone is lit and the time is 2:42. The phone also changed hands in the revealing cut. (00:39:50)
Continuity mistake: When the phone rings with the call about Emily being found, in close-up the phone is very close to the wicker basket, in the wider shot there's a big distance to allow Henry Golding to put down his glass in between phone and basket. (00:39:50)
Revealing mistake: After the report on the Kia, Sean receives a call from the Warfield police department. Sean is a professor in Connecticut, but his mobile carrier as shown in the close-up of the phone is Rogers, a Canadian company. The film was shot in Ontario. (00:39:50)
Continuity mistake: In the opening shots of the funeral, Stephanie is holding her son's hand in the first, and his shoulder in the second. (00:41:25)
Continuity mistake: Outside during the funeral reception, Sean and Steph are dealing with Nicky. The camera cuts to the parents of the kid's classmates gawking at the scene, but before and after they can be seen in background through the window minding their own business and chatting oblivious to what happens outside. (00:43:30)
Continuity mistake: When Detective Summerville asks Stephanie how is Sean's grief, Anna Kendrick's hand keeps changing position at every cut; two fingers under her chin, one, two again and in the same shot lowered to her breast, back under chin again. (00:51:05)
Continuity mistake: When Summerville stands and walks away, Stephanie tells him his theory does not hold water; her hair suddenly is combed behind her shoulders, as opposed to the front as earlier. And a few cuts later, when she praises the quality of the local heroin, she puts her hands on her hips, but is shown with her arms open in foreground at the cut. (00:52:25)
Continuity mistake: At dinner in front of the very crunchy Caesar salad, Nicky says he saw his mom, and when contradicted drops an F bomb and storms off. Miles is putting his fork down at the F-U but in the next shot he's holding it nice and tall. (00:54:55)
Continuity mistake: During the conversation on the plane back from London, Emily's hair keep changing position depending on the camera angle. (00:57:00)
Revealing mistake: In the sequence with Steph's car spinning out of control once she inadvertently rushes the red light, her son Miles is screaming scared, but the baby actor is laughing. (01:02:50)
Revealing mistake: Stephanie receives a call just after she opened the envelope Nicky gave her, with the brother-f**ker picture. When she picks up the phone, not only it shows the Canadian provider Rogers, but also a time of 4:31 PM, when she just got back home with the kids (who don't do a full time, Sean mentioned 2 PM at the funeral as a time when Emily would drunk-rant at Nicky), plus she still finds Sean busy at work after that despite the city being one hour and a half away. (01:03:10)
Continuity mistake: When Linda Cardellini says "beatific" to the protagonist, her knife points the sharp edge in the opposite direction of the previous and following shot. (01:11:40)
