Continuity mistake: When Albright's driver is taking Mark at gunpoint to the car (after leaving Mrs. Jensen's room) he has his gun against Mark's chest, but in the next shot it's against his back.
Continuity mistake: When Jesse Eisenberg seeks shelter at John Leguizamo's house, John Leguizamo pulls a gun on him. Jesse Eisenberg grabs the gun from John Leguizamo and in the close up of this action it's a completely different gun. (00:40:55)
Continuity mistake: After Brad gets the electric shock, his shirt is completely clean but few shots later he has some burn marks on it.
Continuity mistake: When Eilis has dinner with Tony's family for the first time, everyone is eating spaghetti. When the little brother returns at end of the scene, they are eating meat and vegetables, which you can also see being served on the table as well as each individual plate. (00:36:00 - 00:36:45)
Continuity mistake: When Shaggy and Scooby are approaching the Demon as he eats, it is shown that he is eating from a platter of hamburgers and french fries. Scooby and Shaggy bump into his table, knocking the food all on the floor. When Shaggy and Scooby quickly put all of the food back on the table, it now has french fries and hot dogs.
Continuity mistake: The day after the fight in Tijuana, when Donnie's at his desk he's wearing a grey striped tie, but when Donnie walks into his boss' office he's wearing a navy tie with dots. (00:07:30)
Continuity mistake: The 2 wires from the trolling motor (first 1 black 1 red, than both black, at the end 1 black 1 red again) change color first and change the position - from the front to back, without him making any sudden movements. (00:41:10)
Continuity mistake: Jacob gets a call on his ear phone with a news report of Lougle going up on the market. It cuts to the other side as Lou is about to slap the hologram away and suddenly the logo for Lougle is replaced by a sign that says U-Street and has a large 95 under it. (00:31:25)
Continuity mistake: When Rachel McAdams is interviewing Joe in the coffee shop, she starts off with a couple of lines written on her notepad, then half a page, then back to a few lines, then a full page, etc. It changes in almost every shot. (00:38:40)
Continuity mistake: At the end, the TV newscaster reports that 150,000 reserve human forces have been activated. But the crawl strip at the bottom of the screen reads "150,000 RESERVED human forces," a different meaning altogether. (01:59:00)
Continuity mistake: When Bianca takes Wes to the "thinking rock", as they talk and her hands are in her lap, her hair moves from over her left ear to behind her left ear and back, twice.
Continuity mistake: When Gordo leaves Simon and Robyn for a few minutes to handle a work thing, Simon starts mocking Gordo in his absence. Simon tells Robyn that Gordo wants to nail her and Robyn says "Stop it," but Simon continues his mocking of Gordo. At the end when Simon is listening to the recording that Gordo made of that conversation, Robyn's "Stop it" is absent.
Continuity mistake: When everyone is sitting at the camp fire, after someone says "You remind me of Mariana when she was young", it cuts to Julia smiling. In this shot, Julia's hands are off-screen and at her side. When it cuts to a wide shot, her right hand is suddenly over her face. (00:45:00)
Continuity mistake: When Steven and Bryson are at Enterprise, the sweat on Steven's shirt changes between shots.
Continuity mistake: The close up of handwriting on the visiting card handed over to Gert at first does not match with the close up shown later.
Continuity mistake: Towards the end while Brian and Welch are talking at the hotel, the sun on the wall changes between shots.
Continuity mistake: Ilya is standing across from and about midway between Chris and Alicia. He spears the shovel into the ground, but it unintentionally falls over to his right (mostly off-screen). The next view of the shovel shows it has fallen to Ilya's left. (The entire shovel is to the right of Chris, which would be too far regardless of which direction the shovel's handle fell.) In the next view, the shovel's blade is opposite Chris' left foot and later the angle is different. (00:36:30)
Continuity mistake: When the boys are about to enter the woods and they arrive on their bikes, the younger boy can be seen first on his bike, then standing next to his bike in the next shot, then on his bike, then he's off it again where he lets it fall onto its side.
Continuity mistake: In the scene with the fireworks, the Deputy driving the vehicle has his outside mirror knocked off by a firework. You then see the same and only Deputy in the car, in the mirror getting out of the passenger side of the vehicle to confront the misfits. The change isn't due to the reflected image. (00:13:05)
Continuity mistake: Spoiler alert: About halfway through the movie, we see Emma Roberts coming out of the shower, and the camera focuses on the gunshot wound on her shoulder, with the round scar of the entry wound on her back, and the much rougher, ragged scar of the exit wound on her front. Then at the end of the movie, where it's revealed that Kiernan Shipka and Emma Roberts were actually playing the same character, just nine years apart, Kiernan Shipka gets shot by the police officer when he finds her in the room with the severed heads. Problem is: she was facing the officer. The scars on Emma Roberts are the wrong way around. (00:31:05 - 01:15:35)