Revealing mistake: Just as the first credits roll, when the cheerleaders dance, check the African American, Caucasian, and most noticeably, the Asian American people behind the team. They are blatant, creepy-looking, unrealistic CGI characters. (00:01:18)
Continuity mistake: When Sam and Tara are at the police station, pay attention to the objects on the table. After officer Bailey enters the rooms, several of the objects on the table suddenly change positions from the first shot. For example, Tara's phone and coffee cup swap places. The pen has moved a few inches up on the notebook. A few of the photos shift around, etc.
Continuity mistake: After Mills flings the squished bug and black debris/gunk from the palm of his left hand, a quick flash of his palm shows it mostly clean with skin visible. However, seconds later, his palm is covered in the black gunk again when he shows his hand to Koa. (00:33:10)
Continuity mistake: Chato is returning to the diving bell. He has on a full face mask and tanks. Yet in the next shots, he is shown approaching the bell and getting out of the water. He has no face mask and no tanks.
Plot hole: Jenny steals Dr. "Sanchez's" badge by bumping into him so she can get into the lab, but she never did anything to return it. But Dr. "Sanchez" is still somehow able to walk into his lab without his badge. And even if he thought he left his badge behind in the lab for some reason and had someone let him in, he doesn't do anything to look for it, which would have alerted him to a security breach before seeing the scarab missing.
Continuity mistake: Byron walks towards the maid and surrounds her waist with his arm. From the angle behind, he is repeating all previous movements.
Continuity mistake: During the drive to the mansion, the number of pages Noah has read in her book ("Pride and Prejudice") varies with front/back views. After she has read to almost the end, she's back to the middle or about two-thirds left to read. (00:02:00 - 00:02:44)
Continuity mistake: Tre holds the bound fleece blanket [or men's top?] with the white border to his left, but it lands (not rotates) onto the desk with the white border to his right. The blanket is at a different angle in front of Chris, and the white border faces Chris (i.e. rotates about 90°) before Chris touches or picks up the blanket. (00:05:58)
Continuity mistake: When in the cyclone stadium scene, you can see two water people behind Gale. But later, a different water person is sitting next to the same water person on the right.
Other mistake: After the first guard at the chemical plant is sniped, the second guard goes to check on him and is surprised by the sudden appearance of an attacking helicopter. Helicopters are extremely loud, and flying as low as it was depicted would also vibrate the ground and the building. There's no way it would have been able to sneak up on the guard like that.
Continuity mistake: In the Soviet bunker, Batman hooks a soldier taking cover at a distance. In the next shot he's suddenly closer and in range to kick him.
Factual error: It is shown, more than once, that letters from the IRS are piling up, and it's implied that these are the property tax problems with which the main character is wrestling. However, property tax letters would not come from the IRS/Federal government. Rather, they'd come from local/county/city government.
Factual error: After Napoleon's coup of the consul, there is a scene featuring Josephine carrying a toy Pomeranian dog. While Pomeranians existed at this time, they were much bigger in size (upwards of 50 pounds). The more modern type of Pomeranian that she is carrying wouldn't start coming about for another century.
Other mistake: The window looks closed, but even if the window is open, the woman ironing in her house across the parking lot would not be able to hear Jay and Maggie's argument from that distance, only muffled voices at best. (00:05:18 - 00:06:11)
Visible crew/equipment: As Doric leaves the house after transforming from a cat, a crew member can be seen in the background. The crew member is casually leaning against a wall, with a red T-shirt and a face mask. (00:41:18)
Suggested correction: This person is a tiny figure on the extreme right of the screen who is on screen for a fraction of a second while the camera is panning away from him. I had to watch the scene multiple times before I saw what you are referring to. Even then, he is only identifiable if you freeze-frame the picture, thus invalidating the mistake. (At normal speed, I initially thought he was a red banner or curtain).
Continuity mistake: The right side of Miller's [Ryan Phillippe] shirt collar is underneath his suit jacket, but in side views, the shirt collar extends above the jacket (i.e, is visible up his neck). (00:08:45 - 00:09:10)
Continuity mistake: The position of the pamphlet display on the side table changes a few times after Paul sits on the couch. The pamphlets are near the upper right-hand corner of the table before Paul sits, and then the pamphlets are behind the lamp, towards the rear-center. The pamphlets are in the upper left-hand corner, then suddenly in the upper right-hand corner (where they start) when Paul removes one from the display. The location and angle of the lamp shade also vary. (00:09:00 - 00:09:25)
Continuity mistake: Bella sits on the couch, and the two metal purse strap buckles are atop the front and back sides of her left shoulder. In alternating views, the buckles are a couple of inches lower along the front of the strap. (00:05:07 - 00:05:33)
Continuity mistake: The desk lamp (which has an odd 2-3" "halo" around its perimeter) faces the screen (angled away from Sid). Suddenly, the lamp aims at Sid spinning in his chair. The lamp goes back to its original angle but varies a couple more times. (00:41:20)