Continuity mistake: When Sook-Hee is standing outside in the rain before leaving, she is shown holding an umbrella whilst it rains. She walks over to say goodbye, whilst still holding onto it. A second later, she leans in to kiss a baby on the head, and the umbrella is no longer there. It is shown later that she placed the umbrella on the ground, but she was not shown doing this earlier in the scene. It just disappears in between shots. (00:02:20)
Continuity mistake: When Lockhart sits down to talk to the manager, the glass of water goes from half full to almost entirely full between shots. (00:20:30)
Continuity mistake: The cursed necklace is shown emitting its evil fumes on the white paper of the letter, but the letter itself is perfectly 90° with the envelope, or at a different angle. (00:06:20)
Character mistake: In the newsreel during the growing tensions, a newspaper headline featured with great importance goes like this; "ABUCTED son not yet found." (00:04:30)
Continuity mistake: When Sang-hwa is holding onto the first zombie he comes into contact with, he grabs onto the zombie's hair and some of its hair is in the gap between Sang-hwa's thumb and finger. In the next shot, that hair in between his fingers is no longer there. (00:25:45)
Character mistake: Despite portraying a highly trained Special Ops marksman, Seagal repeatedly holds his rifle incorrectly, resting the butt on top of his shoulder instead of braced against it, making proper aiming and recoil control impossible. He also switches his weapon between hands when turning corners, a tactic no real special operator would ever use in close-quarters combat.
Other mistake: Kassidy drives up to the drive through in the rain. In the next shot the ground beneath her car is dry. (01:29:00)
Character mistake: When Mike's wife is watching the news about the oil rig on fire, you can see the TV with part of the U.S. map on it and 'Mississippi' is misspelled as Missisippi. (01:09:10)
Continuity mistake: When Rebecca is reading on her iPad and Tom, as Mr. Fuzzypants, reading the newspaper, there is a bowl of strawberries and blueberries on the table, positioned about a foot away from the newspaper. In the next shot, the bowl of strawberries and blueberries is suddenly much closer to the newspaper. (00:54:45)
Continuity mistake: When the three girls decide it's high time to make their own sorority, they begin to jump all over the place excitedly. Nora for the greater part of the scene has worn big pink glasses on top of her head, but they are in her hand as the jumping ensues. However, cut to Dustin shouting at them from the door, and Nora's glasses are back on her head. (00:12:25)
Continuity mistake: Bill Pope just went off the stolen bike and is descending the stairs to the tube; people around him change completely between shots (he moves past a short haired woman dressed in black that is a few steps ahead of him, too). (00:03:50)
Continuity mistake: When Dylan enters Thaddeus' prison cell and begins looking around, there is a clock on the wall showing 7:52. As Thaddeus walks into the cell seconds later, the time on the clock is suddenly 7:55. (00:40:39)
Continuity mistake: After the mercenaries kill everyone in the desert, there are two guys looking at them using two monitors. The pencil below them changes from white to blue.
Continuity mistake: This is after the minotaurs have found Horus and Bek. As Horus is fighting the second to last minotaur, he breaks off both of its horns. In the next shot, only one horn is broken. (00:52:30)
Continuity mistake: When Norm, Olympia and Vera are at Olympia and Vera's apartment, Vera is carrying two grocery bags to put onto the counter whilst Olympia is talking about human activity potentially destroying the Arctic. When Vera puts the grocery bags on the counter, there is nothing shown on the chopping board, but a few shots later, a tomato and an onion have suddenly appeared on the chopping board. (01:03:55)
Continuity mistake: When the G.R.S. team is on their day off (9/11 anniversary), Tanto is seen video chatting with his wife. In the frontal shot of him, he's using a Samsung smartphone, but in the next shot, it changes to a Blackberry. This is done multiple times throughout the scene.
Continuity mistake: In the footage inside the bathroom at Pope's, Kevin Hart is wearing a different sash from the rest of the party scene (or more likely, the same one but inside out by mistake). It's particularly obvious when he looks out of the window and the two patterns alternate depending on the camera. (01:04:50)
Continuity mistake: When Holland shows the bartender the dollar bill in the shape of a shirt, he is smoking a cigarette before he takes the cigarette out of his mouth. Holland mentions to the bartender that he made it himself, with nothing in his mouth, but in the next shot, the cigarette is suddenly back. (00:09:45)
Continuity mistake: When the helicopter has crashed and the President and Banning are standing outside, Banning removes his radio and earpiece and throws them to the ground. The earpiece is back in the next shot. (00:40:00)