Continuity mistake: The changes/inconsistencies in how the lobsters were arranged on Frank's and Hildy's plates cannot be accounted for based on their movements while eating/cracking them open. (00:59:35 - 01:00:37)
Revealing mistake: It was "raining" when Francesca was driving toward the house, but her vehicle "moved out of the rain" before coming to a stop. Furthermore, when the camera returned to Francesca walking toward the house, it was not raining and the driveway did not look wet. (00:48:53)
Factual error: James called the "Washington Board of Psychiatry" to file a complaint against Dr. Clark (Philip). Complaints (which need to be WRITTEN) against medical doctors are filed under a State's Medical Board, which would be the Washington Medical Commission in this case. Washington has a Board of Psychology and there is a Washington Psychiatric Society, but there's no "Washington Board of Psychiatry" per se (and even if there were, a complaint would still be filed with the Medical Commission).
Continuity mistake: Joe has 'Rick C' (his partner) listed as a contact in his phone - late on in the movie when Joe calls him from the bathroom stall, he is listed as just "Rick"
Continuity mistake: There isn't anything immediately in front of the storage shed when Edee opens the door. Inside, looking out, there is some type of diagonal, long thin branches or vines extending to the ground, which are gone in the subsequent view. (00:09:42)
Audio problem: When Russo drives off in his Tesla, you hear the car revving and gear-shifting, despite being electric. (01:04:58)
Continuity mistake: The height of the stack of magazines on the coffee table in front of John changes with the camera's view. Front views of John show a high stack of maybe 15 magazines. Side views of John show a much shorter stack of several magazines. (00:25:03 - 00:26:07)
Other mistake: The issued sidearm for the Spanish National Police is the H&K USP 9mm Compact, which has a capacity of 13+1 bullets, and the Civil Guards' is the Beretta 92fs/M9, which is a 9mm and has a magazine capacity of 15+1 bullets. As of 2020 the Beretta is being phased out for the H&K USP C. The police officer fires a total of 5 bullets from his Beretta then the slide locks back because its dry. He has no magazines for reloads either. I highly doubt the Spanish police issues 5 bullets to their officers. (00:33:00 - 00:35:30)
Other mistake: When Zoe Levenson first looks out the window from the spaceship, the earth is from the bottom moving towards the top, this is opposite to the ship spinning direction, which can be determined by the direction of the gravity. (00:12:50)
Revealing mistake: At first glance, the cow at the start may have looked real, but its limited mouth movement while eating grass (without any grass being pulled out) indicates it was a mechanical cow. The cow also did not move its rear end or raise its head when Fenn and Geary approached and stood right behind it. A real cow would not stay in the exact same position (motionless) that amount of time. The cow's "fur" also did not look real. (00:02:50 - 00:03:24)
Revealing mistake: When "Snowball" is sleeping on Lena's bed, it is obviously a "stuffed double" (stand-in). Snowball is usually partially hidden behind the dog (so breathing doesn't need to be shown/mimicked). The failure of Snowball to make even a slight movement is a giveaway (e.g, no ear movement when Lena starts talking), but even the stuffed lion, in itself, is not a very good replica - it simply looks fake. (00:33:44 - 00:48:20)
Continuity mistake: Mina visits Petey at the store, tells him to sit down, sits down herself. During the conversation, the sleeve of her tee is covered in hair in the front views, clear in the reverse angle. (00:09:00)
Continuity mistake: The police officer stopped his cruiser some distance behind Malik's SUV, but the cruiser was closer to Malik's SUV when the officer was talking to him and when he pulled his gun on him. (00:19:27 - 00:21:55)
Factual error: "The Waltons Homecoming" is a remake of the 1971 TV-movie that led to the 1972-81 television series "The Waltons." In one scene, John-Boy has written a story for The Boston Arts Scholarship Competition. He addressed the envelope to "1815 Redwood St, Boston MA 02122." The movie is set in 1933. The Postal Service did not introduce ZIP codes and two-letter state abbreviations until 1963.
Continuity mistake: At the Internet Store, Spencer was told his house was "right outside" the service area, internet was not available, and a satellite would not work. At the Phone Store, Chad told Lynn and Zoe they were in the "dead zone." When Lynn answered Spencer's call by putting her head out the upstairs window, she said, "The service is great up here." Lynn and Zoe could listen to the news on their cell phone in the kitchen and Zoe read about asteroids just outside the front door. Internet worked? (00:04:53 - 00:28:00)