Continuity mistake: When Laurence asks Colin for a cigarette in the screening room, he has it between his fingers when Colin lights it, but when the shot cuts, his fingers have disappeared from around the cigarette. (00:45:30)
Other mistake: Spoiler alert! At the end, when the sniper shoots the killer, Eve says he is 800 yards away, but within the next 30 seconds he appears at the scene. (01:22:02 - 01:22:32)
Continuity mistake: After Sarah finds her father in the bedroom and goes downstairs to get help, the blood pattern on her shirt/upper breasts changes. While the movie is edited to look like one continuous shot, it was filmed in bits and pieces, and the blood pattern was not consistent in some of the shots, it seems.
Deliberate mistake: The driver's side mirror would not be able to capture the view of the store that Monique is robbing - the mirror is slightly angled towards the rear of the car, plus Arthur's car is parked too close across the street. (00:00:33)
Factual error: Danny Greene has a bomb placed in Shondor Birns' car. As Birns is waiting to cross the sidewalk, the pedestrian walk-don't walk sign is a modern digital sign, that was not around in 1975.
Visible crew/equipment: During the torture and murder of Troy there is a moment when Jamie, unable to watch the violence, sits in the kitchen with accomplice Mark Haydon. Jamie and Mark sit in silence at the kitchen table and the film cuts between close-ups of them. In the two close-up's of Mark you can see the boom microphone reflected in the glass of the kitchen cabinet near his head. This happens twice and the microphone lingers both times. (01:15:29)
Other mistake: When the captive begins her escape, she kicks the bed through the orange portal offscreen, but the portal only starts about a foot off the ground, so the bed would have hit the wall, rather than have gone through the portal.
Factual error: The young priest sees images of a red-eyed horse, but later, it is referred to as a mule, which looks much more like a donkey.
Factual error: Mallory tells Florence that the school is in Cumbria. Cumbria didn't exist in 1921. It was created in 1974 from Cumberland, Westmorland and part of Lancashire.
Revealing mistake: When Donovan witnesses a fatal traffic accident on a rainy night, he suffers a mild heart attack and collapses in the street. Although he's lying on his back, unprotected from the downpour, surrounded by rain striking the pavement in both foreground and background, closeups show that no rain strikes his face, his felt hat, or his clothing. (00:12:20 - 00:12:50)
Continuity mistake: When Frisson is giving the adder to the girls, the adder is going to go leave the jar through the hole but in the following shot, it is resting at the bottom.
Factual error: When Andy is headed to Mr. Simon's house, a white 90s Lincoln Town Car can been seen in the background, out of place for the 1965 setting. (01:31:45)
Revealing mistake: As the guy is being pinned down by the giant hooks you can see for over a minute he can simply escape and slip his hands out. (00:52:30 - 00:53:30)
Other mistake: At the beginning, the arrival board has the cities listed in alphabetical order, but "San Francisco" comes after "San Jose" when it should come before it.
Continuity mistake: Jacob's phone appears first behind the laptop and, in the next shot, right next to it. (01:04:30)
Factual error: Colonel Meyer's promotions are listed in his SS ID card as Hauptmann, Oberstleutnant and Oberst. Since the SS used a different ranking system from the Wehrmacht, they should actually be Hauptsturmführer, Obersturmbannführer and Standartenführer.
Continuity mistake: When Gail rises suddenly from Katie's bed, she ends up sitting still with the blanket is draped over her shoulder, but she has her arm free in the next shot. (01:03:20)
Continuity mistake: Late in the movie, when Anya says goodbye to Patrick, she takes off her wedding ring and puts it on the table before leaving the café. In the next scene, her wedding ring is visible on her hand throughout her call from the phone booth.
Audio problem: When the Droidekas start shooting at Yoda and Han, one of them shoot however the sound comes after the shot is fired. (00:16:05)
Continuity mistake: Mariso Golfetto is beginning a tirade about immigrants and assaults on women. A woman gets her drink from the barman, picking it up with her right hand, completing the movement. Reverse shot, and not only she repeats the gesture and still needs to pick up the glass, but she does it with her left hand. (00:07:00)