Factual error: We see the mob boss at the start shoot a man from inside the SUV with a shotgun. However, the windscreen doesn't get affected in any way. A shotgun blast in a confined space has a spray and would have hit the glass. (00:02:30)
Continuity mistake: When the guy with the hat plays pool and goes to hit the blue ball, in the next shot it changes to white and he completely miscues. (00:27:25)
Continuity mistake: The German and British airmen are looking at the Northern lights. From the rear the men are apart, but the front shots of them show them much closer to each other.
Revealing mistake: When Three Finger is driving the truck to ram the car containing Angela's husband you can see round the eyes that it is a mask being worn.
Continuity mistake: Tom walks into Anthony's memory. Anthony is sitting by the pool next to a table with two glasses of beer, which are 1/3rd empty. A few minutes later the memory is replayed, but this time both beer glasses are mostly full. (00:49:50 - 00:58:35)
Factual error: Close up, very detailed footage of a Cobra citizens band radio is used for the scenes where dispatch radio traffic is coming over the police radio. Police dispatch does not, nor has it ever, used the Citizen's Band radio service. (00:11:25)
Character mistake: When Michael goes to the antique shop, the sign out front is spelled wrong; it reads "anitques."
Continuity mistake: When the mother breaks the window to enter the neighbor's house the next frame shows the glass still intact. (01:07:00)
Continuity mistake: At the end, the heater is on a chair when Sally chucks the locket on to it. After the spirit has been banished the heater is now on the floor.
Plot hole: In this Australian time-travel fantasy, a college student discovers a one-way time portal that allows him to travel one day into the past each time he uses it. While he at first attempts to rescue his girlfriend from a traffic accident that occurred a day earlier, he eventually travels back 50 years (one day at a time) to save his young grandfather. However, in order to go back 50 years (one day at a time), he'd have to repeatedly climb through the portal over 18,000 times. Apparently, it's not an issue, because the movie just glosses right over it in less than a minute.
Continuity mistake: When the mean Santa puts the little girl in his lap and asks her what she wants, she's wearing gloves. When it cuts to a different angle, suddenly her gloves are gone.
Plot hole: The killer has been living in the (apparently big enough) crawlspace between walls and floors, for over a decade. There is no explanation (or rationale) given on how he moved the various objects inside every room, closed doors, fed when the house was not occupied, hid the various corpses and, silly detail, concealed his own BO and the stench of his own living quarters, which is something hinted at when they find out his hideout. It is explicitly said that he is agoraphobic and does not get out, ever.
Other mistake: Aladdin slices off one head of the monster in the tomb. The body spurts copious amounts of blood and the severed head even bounces on him repeatedly, but Aladdin's shirt is immaculate afterwards. (00:04:40)
Continuity mistake: Sheila is clutching the phone to her chest with both hands, since Melinda is reaching for it to delete the butt-flexing video. The door chimes and the bearded man enters the store; in the foreground Sheila is in a different position with her arms crossed, and in a third one with her arms down at the next cut. And even more noticeable, a 4th different one as she walks away, holding the phone across the chest to the opposite side of her body all of a sudden. (00:07:50)
Other mistake: After the medical student leaves the unconscious co-pilot to one of the other passengers to watch while he goes to the bathroom, she notices his hands grow cold after a bit. It is only then they realise he has stopped breathing, and then get a defibrillator out and are successfully able to use it to revive him with CPR as well. However if he has stopped breathing for long enough that his hands have started to get cold, he would already be way too far gone to be able to be revived.
Continuity mistake: While he is copulating with Laurence, François Monge receives a phone call from his boss about the murder case in Bobigny. To shush his vocal partner, he gives her a slap on the shoulder, but he does it with the right hand in the view from behind, and the left hand in the full frontal. (00:08:55)
Revealing mistake: Lazy prop department at work in the opening credits of this movie; look at the guest list. The second page and the first page are an exact copy and paste of the same names and addresses. (00:01:35)
Continuity mistake: The alarm clock chimes; Juno Temple reaches up with her left hand, putting it on the upper part of the pillow. Michael Angarano crawls over her to turn the alarm off, but she's napping with her hand by her chin, on the bottom corner of the pillow. (00:02:40)
Continuity mistake: George's son is disappointed because his dad missed the ball game and tells him that he should have been there. Meanwhile Denise Richards approaches the cooking pot with her spoon in her right hand and the plate in her left. Close-up on her telling Howie that dad was busy, and spoon and plate switched hands. (00:18:45)
Continuity mistake: Alexandre Lagarde puts his fork into the plate of the attractive client, much to the scorn of her husband. The morsel in close-up and the one she actually puts in her mouth are different. (00:06:10)