Factual error: No matter how sophisticated the STEM chip is, it would not enable Grey (Logan Marshall-Green) to go from a completely horizontal position to a completely vertical position in one fluid motion, without bending his knees, and he does this several times in the film.
Factual error: Tony writes a "postcard" on the back of a picture to Adrian and Veronica to an address in Cambridge including the postcode. This scene occurs in 1967 (we see the date on the letter he is responding to) but postcodes weren't in use in Cambridge until at least 1970.
Continuity mistake: Man-seob smears some cream above his upper lip after a few smoke grenades are deployed. The amount of cream shown over his upper lip changes between shots.
Deliberate mistake: The front passenger's side mirror [driver's side is on the right] is parallel to the screen/camera yet there is a perfectly clear image of the passenger's face looking into the mirror. (00:00:38)
Continuity mistake: Maggie gets downstairs while Henry and her daughter are playing with their phones. The hair goes in front and behind her right shoulder depending on the camera angle. (00:03:00)
Other mistake: After surgery and throughout Henry's hospitalization, how much his head is wrapped (completely or partially) plus the amount and location/size of separated bangs vary numerous times. Once the head is wrapped, there shouldn't be much, if any, changes in the bangs because the tight bandage would hold them in place. The tight, completely wrapped head with no bangs showing immediately after surgery appeared intermittently, which doesn't make sense. Henry's head should have been shaved but was not. (00:37:29 - 00:44:16)
Continuity mistake: While Jim is narrating his story, he gets to the point when his son was hit by a drunk driver. The line slows down, but when it cuts to a close-up of Renée Zellweger saying "Sorry Jim", you see the trays shift. Only, they are back in the exact same spot as before when the close-up is over. (00:28:20)
Continuity mistake: Kate at the beginning of the movie asks Demerius, the kid who is reading a manga, to read some of it loudly for the whole class. When she addresses him first, the book on his desk changes position between shots, repeatedly. (00:01:20)
Factual error: The RAF Dakota that flies Robin and Diana back from Kenya in 1959 has American markings and D-Day invasion stripes, marking it as a heritage aircraft rather than a service aircraft of the era.
Continuity mistake: When Megan is outside the supermarket asking people to sign her petition, a woman walks up and begins writing on the clipboard. In the first shot, the cap is on the back side of the pen. From the next angle, the woman is scribbling and lifts the pen to show the cap covering the tip that she was "writing" with.
Factual error: Following the blowout, Sara's phone is shown several times as being connected to Wi-Fi with a full Wi-Fi signal. Being in the middle of nowhere, surrounded by hills, it's highly unlikely there would be a public Wi-Fi connection for her to connect to.
Factual error: The film informs us the gravity on Neptune's moon Triton is less than 8% of Earth's. But the whole physics of the rocks and his movement on the surface do not reflect that. The actual surface is frozen nitrogen. The difficulty he has in moving around is not well correlated by him only weighing 7kg. Https://www.imdb.com/title/tt5361488/.
Continuity mistake: At the beginning of the movie, Cass is blackmailing Mira about the true nature of her little trip. She calls Liam up; during the scene, she is holding the hanger in a different way between shots (left hand on the hook, or under it). (00:04:00)
Continuity mistake: After Hutch is buried, Dominic leaves to catch up to the other two, limping with his right knee held rigid. An aerial shot is then taken showing Dom limping on his left leg instead.
Continuity mistake: When the weather balloon is launched, the kids are alternately in the sun or shade depending on the camera angle.
Visible crew/equipment: When Detective Hole enters the murderer's cabin you can see somebody running in the snow outside.
Plot hole: Derek, who escaped the mental hospital by pretending to be his twin brother Tyler, was able to locate Tyler's vehicle by using the keys to beep its horn. Once inside the SUV, he apparently found Tyler's cell phone, which is odd because most people carry their cell phones with them. But Derek did not ask Tyler for his cell phone's password before rendering him unconscious - so how did he gain access to the cell phone without the password? (It isn't likely that Tyler previously gave it to him). (00:20:40)
Suggested correction: Tyler never left his cell phone in the car. He had with him when visiting Derek. We see him pull out his cell phone to show Derek a picture, so the phone was already unlocked, assuming he locks it with a password in the first place.
I haven't had time to finish posting the rest of the mistakes I have, but I just uploaded two that should show up under "pending submissions." They probably should have been posted before the one above. I suppose the real question is where the cell phone came from each time.
Continuity mistake: Lynn Jackson collects things from the desk and looks at George Pierce, who tells her "I'll talk to him", clutching his smartphone to his chest. Next shot and his arm is down his side. (00:18:10)
Revealing mistake: Right at the beginning of the movie, an alien blasts Lieutenant Smalls and he drops his rifle. The weapon wobbles, revealing it's a rubber prop rifle. (00:01:55)
Continuity mistake: Alison is saying goodbye to her parents and she is wearing a long kimono. As she walks into her bedroom she is no longer wearing it, and then picks it up off her bed and puts it on. (01:07:05)