Continuity mistake: In Joanna's bridal shower she gives a necklace to Marni. When Marni is talking to her nanny the necklace disappear between shots.
Factual error: The attack on the OPEC meeting in Vienna takes place on December 21. Yet, when Carlos' team exits the tram, the trees are full with green summer leaves and the sun shines as it would on a high summer day.
Factual error: There's a scene where a woman's son and Kahn are playing on an Xbox. The movie was set around the time when 9/11 happened and the console was not even released at that time. You can tell from the controller they were using. It was white and had a battery underneath for wireless gaming.
Continuity mistake: In the final battle scene after the Band reaches the canyons and are on a cliff overlooking the Guardians, you can obviously see that Twilight doesn't have his lute. After focusing on Soren struggling to remove the pot of tar, we see Twilight flying with Digger and Gylfie, but with his lute. Impossible to be so fast. (01:11:55)
Plot hole: When Dylan enters the vampire Vargas's bedroom to interrogate him, Dylan frequently steps away from the door to let sunlight in to burn Vargas, so that Vargas will cooperate with the interrogation. Vargas is in his bed and could easily cover himself with his sheets to block the sunlight, but never does.
Continuity mistake: In the scene where Cindy is about to have her abortion, we see a shot of the nurse holding her hand and the nurse has on purple latex gloves. In the next shot, the nurse is holding her hand without gloves.
Continuity mistake: First when Carson kisses Rachel she's on his left side. When the kiss is over she's suddenly on his right side. (00:52:00)
Continuity mistake: When they jump on the train at the end of the film, the train tail light is on the right hand side and its also a light that didn't come in until the 80's and in the long shot of the train speeding along the tail light is on the left hand side.
Factual error: In the chase scene where Lou is running after the derelict, they pass a number of vehicles parked and driving on the streets. All of them are correct period vehicles for the late 1950s, except for a white semi truck which is from at least the mid 1990s. The grille and headlights on the truck are the giveaway. (01:23:20)
Continuity mistake: When Ellie & Fiona are breaking into the garage to steal the gas tanker truck, Fiona's hands are by her side. The camera angle changes, and her right hand is up, holding her rifle strap.
Continuity mistake: When the security guard opens the back of his vehicle the gun is pointing to the left, but when the shot changes as the security guard reaches in for the hat, the gun is pointing to the right. Then as he turns to put the hat on Tyler, the gun is again pointing to the left.
Continuity mistake: Towards the end of the movie, after Boyka gets out of the car with the briefcase, Turbo gets out after him and has a conversation. When Turbo goes back to the car, you see Boyka standing on the side of the road. There is only that one road in all the shots. In the next close up shot of the car door closing, and the car moving, we see the car getting out on to the road from a small by-lane (of sorts)! Where did this road come from? How did the car move places?
Continuity mistake: At the end of the movie, when Ray makes a call to channel one news, he is seen to press the dial button, but when he looks to see a fleet of super hybrids, his phone is displaying a picture rather than placing a call.
Continuity mistake: Throughout the motorcycle/police car chase they used two different motorcycles made 50+ years apart and just painted them both black. One is a 1940s Harley Davidson with a springer front end and the very recognizable horn below the headlight, and the other is a late 1990s (at the oldest) cruiser with a front end that's completely different in every way.
Continuity mistake: After the shootout at Sarah's birthday party, White Mike is visited at the hospital by Molly. Mike's pillow has marking "Property of Queens Hospital", they cut to Molly, then back to Mike, and the marking is gone. Regardless, they were in Manhattan, they would not have taken him to Queens Hospital anyway.
Other mistake: When the three main characters see the composite sketches of themselves on the news, Chris Hemsworth says "Oh shit" in his natural Australian accent.
Continuity mistake: Jason spits blood onto Joker's chin which changes spot wise and shape wise by the next shot.
Other mistake: Given that Cassandra's parents are so incredibly rich, spoil her rotten, buy her anything, and have even got her a luxury apartment, why on earth is she flying to the USA in economy class?
Factual error: When the Senator is looking at the rent ledger, there are entries for each property as well as the date that money was collected. One of the dates is 2/29/74, yet 1974 was not a leap year. The only leap years in that decade were 1972 and 1976. (00:56:30)
Factual error: While measuring the Electromagnetic Field (EMF) being given off by Stonehenge in the film, a scientist exclaims that the frequency is increasing to over 100 Gigahertz, and is approaching radioactivity. This is absurd. EMF is radiation of electromagnetic waves over a wide spectrum of frequencies. Its strength depends on the frequency at which it is measured, with no relation to radioactivity whatsoever. It has a magnetic and an electrical component, but no nuclear breakdown as such.