Revealing mistake: When Strahm's phone says "no signal" there is actually a three bar signal. (00:06:35)
Revealing mistake: When Bella sees Waylon's body being gurneyed onto the ambulance, Bella has a flashback of Edward's eyes being black. In the short snippet, you can see the rim of the contacts he's wearing. (00:45:15)
Revealing mistake: Right before Rick grabs the half of the broken dagger, he is starting to stand up, only to be kicked by the Dragon Emperor and slide back about 8 feet. As he starts to stand again, you can see that the background is exactly the same as the first time he tried to stand up - meaning that both moments were taken from the same shot, despite the fact that the background should now be different.
Revealing mistake: When Stacy exits the tent before cutting herself with the knife, the rock walls behind her "shake" like they are a set or projection. It's odd.
Revealing mistake: When Ami's chest is being drilled by the "drill-bra" at the end of the movie, you can see blood flowing from her chest, obviously because of the damage the drills are causing her. Yet, later, you can see absolutely no cuts or marks on her breasts or upper chest, where the drills were penetrating her skin. The skin is simply soaked with blood.
Revealing mistake: During the song "Mark it Up", when Pavi supposedly snatches the panties/thongs off of the two girls, you can see they are already in his hands before he does so.
Revealing mistake: At the beginning of Angela's bathroom death scene she is looking at herself in the mirror. You not only see her reflection in the mirror, but also in the shiny metal strip holding the mirror at the bottom which is to be expected. When she turns away and her 'demon' reflection is watching her, you still see the image in the metal strip. As the 'demon' is in the mirror you should no longer see anything reflected in the metal. This does seem to show how these moments were filmed, with the real actors reflections being recorded.
Revealing mistake: At the end of the movie Melissa jumps from the burning truck leaving Rusty inside. As the truck bounces down the slope it catches on fire and explodes. You can see the engine compartment of the truck is empty, no radiator or engine, just an empty volume illuminated by the flames. (01:24:00)
Revealing mistake: When Eli's guardian is disposing of the body of the man she killed in the underpass, we can see that the 'body' is a very poor quality dummy, the hands especially are very plastic-looking.
Revealing mistake: After Mahogany is thrown off the train, as the train brakes and begins to stop, there is a shot of one of Mahogany's hung victims and you can see the whole body vibrate like rubber, which it was made out of. (01:21:47)
Revealing mistake: Jon is part of Shane's pack/tribe, but his face/image is visible in his rear view mirror when it should not have been. (00:57:00)