Other mistake: At the beginning, Jack reveals that he has lots of food allergies and asks the bartender to prepare his shake lactose free, implying that he is allergic to dairy. But later he eats a snowman cookie that Mrs. Claus reveals has butter in it.
Suggested correction: Being lactose intolerant does not mean you're allergic to dairy. It means you lack the enzyme (lactase) needed to break down lactose and usually results in gas or an upset stomach. However, butter is high in fat and low in lactose, so a lot of lactose intolerant people can eat butter or food containing butter just fine.
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.
Other mistake: Fran is unconscious near a gas stove as Marla comes to save her. As Marla is trying to move her, Fran moves her leg even though she is supposed to be unconscious.
Other mistake: In the montage showing Mike and Marcus' parallel (but also wildly divergent) lives, Marcus asks Alexa to turn down the volume. However, the video he is watching pauses instead. In the next shot, it is paused again, but on a different frame. And before the fan goes haywire and hits the screen, the screen is already turned off (but the breaker hadn't tripped yet). (00:32:00)
Other mistake: Rayburn pulled an arrow out of his chest - and without much blood gushing out. The rather small amount of blood on the towel and Rayburn's ability to go about business as though he had not been injured is unrealistic and absurd. (00:27:00)
Other mistake: When Lomito was holding the little green ball with the smiley face on it, her flashlight was shining on her fingers/fingernails - all of which were long and manicured. The length of her fake fingernails - even if they did not exceed the department's policy on maximum length, such as one-fourth inch past the fingertip - probably were long enough to interfere with her ability to quickly put her finger on her pistol's trigger and shoot; the length interfered with her ability to perform her duties. (00:31:25)
Other mistake: When the white mouse runs to save the brown mouse, he runs at normal speed, but the witches move in slo-mo for reasons unknown. (00:47:23)
Other mistake: Jack took Illinois licence plate "BL 91021" off a Subaru SUV to put on the group's truck and put "V 986394" on the Subaru. Illinois truck (< 8,000 pounds) plates have the letter "B" on the middle-right side of the plate. The "BL 91021" would have too many numbers to be valid. By putting a license plate starting with "V" on the SUV - without the letter "B" on the middle-right side - the SUV would not have a truck plate like it should (and would also have too many numbers to be valid). (00:22:49)
Other mistake: Mara wore a light - (white or pale pink?) colored gown to the prom. Dylan's relatively "fresh" grave is still a mound of dirt with some leaves/debris scattered on it. Despite lying on his grave for some time (overnight), Mara's gown does not get wrinkled or soiled; her gown looks totally clean, dry, and wrinkle-free when she gets home. (01:23:30 - 01:29:20)
Other mistake: Alpha was standing at an angle to the senator when he shot him in the forehead, but the bullet hole was not angled as would be expected. Alpha was also holding his gun slightly upward when aiming at the senator's forehead, but the majority of the (odd-shaped) blood splatter behind him was near the back of his neck instead of higher. All blood splatter went behind the senator, but some should have been in front. (00:21:05)