Revealing mistake: Ronnie is shown looking through the vertical-rectangular window of a brown door to Joey's hospital room. His eyes are angled to his left, indicating he is looking toward the person in bed to the left of a double room. When Ronnie is standing next to and facing the man in that bed, there's no door with a window behind him that he could have been looking through. There is a windowless white door on an adjacent wall. (00:00:40 - 00:03:42)
Revealing mistake: A close-up of the Janitor's (Cage's) left cheek shows no moles or obvious blemishes. When the duct tape was shown being put over the cut on the Janitor's cheek, the person's face was not Nicolas Cage's - the "stand in" had moles and other blemishes (age spots?) where Cage does not. (00:04:09 - 00:23:15)
Revealing mistake: When "Snowball" is sleeping on Lena's bed, it is obviously a "stuffed double" (stand-in). Snowball is usually partially hidden behind the dog (so breathing doesn't need to be shown/mimicked). The failure of Snowball to make even a slight movement is a giveaway (e.g, no ear movement when Lena starts talking), but even the stuffed lion, in itself, is not a very good replica - it simply looks fake. (00:33:44 - 00:48:20)
Revealing mistake: The location of George's burn barrel (with flames shooting out) was altered to accommodate filming. At times, there could not have been enough space between George and Fr Daniel for the burn barrel to even be between them (and without catching their clothes on fire). (00:17:45 - 00:18:42)
Revealing mistake: When inside the Forge Arishem says "I created the deviants, Sersi", you can spot Gemma Chan's beauty mark changing side - the shot is flipped. (01:01:15)
Revealing mistake: DEA Agent Rick Bowden was already seated "in the best position" before knowing where Ross would sit in the SF library. Chris Tarbell already had a surveillance camera behind the seat Ross chose, giving him a clear view of Ross, also before knowing where Ross was going to sit. Even if there were cameras in other positions, the DEA Agent and Chris Tarbell being at the right spots in advance was too coincidental to be by chance alone. (00:02:09 - 00:02:30)
Revealing mistake: At first glance, the cow at the start may have looked real, but its limited mouth movement while eating grass (without any grass being pulled out) indicates it was a mechanical cow. The cow also did not move its rear end or raise its head when Fenn and Geary approached and stood right behind it. A real cow would not stay in the exact same position (motionless) that amount of time. The cow's "fur" also did not look real. (00:02:50 - 00:03:24)
Revealing mistake: Sledding down the hill, the "kid" noticed the upcoming cliff, but an aerial view of the "kid" lying in the snow after he rolled off his sled did not show a distinct cliff/ledge, just a snow embankment (piled - or plowed! - against trees/brush). (00:02:48)
Revealing mistake: The Giles brother who got "hung" when he fell after getting shot by MacMasters can be seen moving his body (mostly arms). (00:04:06)
Revealing mistake: At Mrs. (Louise) Bundy's house, Ressler and McChesney were seated at the coffee table, maybe 3' apart. When Louise was sitting in the chair talking to them, only some hair to represent McChesney was on the left side of the screen and Ressler was not visible. It was obvious Louise was delivering her lines without the two sitting there because her head and eyes were turned way too far to the left and right (beyond where their bodies would have been) to be making eye contact with them. (00:45:25 - 00:46:34)
Revealing mistake: Based on the size of the dinosaur's back shown behind the 6' high cement enclosure, there is not enough room for the rest of the dinosaur's tail and the enclosure is not high enough to accommodate its neck and head. (00:16:29)
Revealing mistake: The way in which the flame from the fallen candle started burning the wall painting of the family, as well as how the fire spread (rather, didn't spread) and looked, reveal the fire was computer-generated, not real. (00:24:23)
Revealing mistake: After Charlie talks to Emma in Francine's old bedroom and is standing in the doorway, the background (segment of the hallway) is obviously fake. Shown are less than five of the top steps on the staircase, only a fraction of the size of real steps. The lower section of the banister is also a reduced size. (01:31:35)
Revealing mistake: When Paolo tells Patrizia "I do have something on my father", you can plainly see the separation between the frowned forehead of Jared Leto and his "bald cap" prosthetics. (01:15:30)
Revealing mistake: When the McDonald's bag could be seen setting on the desk, it was about as high as Slahi's chest. When there was an angled view of Slahi from the chest up, the McDonald's bag was as high as his neck (and, obviously, not setting directly on the table). (00:20:20 - 00:21:23)
Revealing mistake: When the injured gardener Peter is in the backseat of the car, his mustache is loose and falling off. The right side runs diagonally past the corner of his mouth with the top too close to his nose and the bottom raised with hairs sticking out. The left side runs horizontally across his lip. (01:25:20)
Revealing mistake: When Julie is running around the city whilst all the extras are stood frozen, there is a moment where she is walking next to a small park, before beginning to turn right and run down a road. Once she runs onto the sidewalk after running down the road, two girls can be seen stood on the same sidewalk holding hands. The girl on the right can be seen moving her right hand ever so briefly, even though the extras are all supposed to be standing completely still. (00:54:35)
Revealing mistake: When Knox pulls up behind the parked BMW, the BMW's red tail light reflectors are not real (and maybe the car isn't, either). The reflector on the right side, in particular, is not fully connected to the car. (00:03:55)
Revealing mistake: The hubcap on the road that the "Black Saints" boy tramped on was a prop. He stomped on one side of the hubcap in his sock (his shoe had fallen off while running) and the other half that was not under his foot rose into the air. Also, when Harold picked up the hubcap, it was flexible (rubbery) and curved. (00:05:38)
Revealing mistake: The picture on the wall of a younger Mike on a horse shows his groin against the horse's neck right below its ears - obviously photo-edited/photoshopped. (00:04:29)