Continuity mistake: Right after Bennett takes off in the plane, Claire throws a gun to Alice. Between the slow-motion shots, the gun switches position in mid-air before Alice catches it. In the shot of Claire throwing it, the barrel is facing to the right, meaning that it should be facing to the left in the shot of Alice catching it. But it still faces the right when she does. (00:58:30)
Continuity mistake: Saw VII takes place straight after Saw VI. In Saw VI we see Jill put Hoffman in the bear trap and leave. We then see that Hoffman spends around 45 seconds trying to get the trap off before putting in the bars on the window. In this film however, just after Jill closes the door we see the glass break. No delay. (00:08:20)
Continuity mistake: When the police car rolls out of the car wash, both passenger and driver's doors are open. When the shot changes to the deputy holding the rifle, the driver's door is closed. In the next shot both doors are open again.
Continuity mistake: When Kristi sits down to have her coffee and read her magazine, the coffee cup is perfectly in place before the cabinet doors burst open and she runs away. When she comes back and closes everything, her yellow coffee mug is gone.
Continuity mistake: In the scene when Dalton is climbing the ladder trying to turn on the light in the attic, it shows him stepping onto the same step twice.
Continuity mistake: After Kyle dies, Audrey jumps off the diner's roof and starts shooting at the possessed people. She runs out of bullets and gets into the blue van. One of the possessed scratches the top left corner of the windshield. These scratches disappear. (01:09:45)
Continuity mistake: There is a scene at the school, where Quentin and Nancy are talking by the lockers. Quentin is wearing a Joy Division shirt. The jacket he is wearing over the shirt keeps changing depending on whether it's a closeup of Quentin or a shot of both him and Nancy. You can easily tell, as the band's name is partially obscured during closeup and fully revealed when it's further away. This changes back and forth several times during that scene. Quentin doesn't move enough to warrant the jacket changing so noticeably. (00:18:15)
Continuity mistake: The chunks of ice in the asylum dunking scene appear and disappear. When Lawrence is brought to the surface, he has two chucks of ice on him that fall off leaving none, but when the shot cuts to him being raised and locked upright, there's a chunk of ice on his right arm. A minute later when he's lowered again into the tank, there's a large chuck by his hip but vanishes when the shot switches showing Lawrence's left side. (01:07:45)
Continuity mistake: When the cop is dead, he is holding onto his radio with his right hand. When the kid picks up the cop's gun, in the wide shot, the cop's right hand is lying down his waist. (00:41:05)
Continuity mistake: During the car chase between Fitch and Diaz, Diaz's truck changes from a Suburban, to an Explorer, to an XL-7.
Continuity mistake: When Jake goes into the water with the tow rope around his waist, the rope is going over the top and through the railing of the boat. When he gets pulled away with the girl, the rope is seen down in the water.
Continuity mistake: After Dave stabs Ravi, the shot cuts to Kurtis running through the woods trying to escape. Ravi (in the clown costume) is seen among the ones pursuing him, but he's either dead or dying at this point, and, obviously, cannot chase someone while riding an ATV. It's a recycled shot from when Tommy was attempting to escape.
Suggested correction: It isn't Ravi on the ATV. Towards the beginning you see Dane on the stairs talking to 3 students, a little later on in the cafeteria you see the same 3 students sitting at a table and the shots keep switching between them and Dane and his friends, and Dane says something like "and they will be in the woods dressed in the same outfits/costumes as us." It's meant to confuse the cops when they show up.
Continuity mistake: When Abby slaughters the bullies, we see most of the scene from Owen's underwater point of view. First, a decapitated head floats down, leaving a trail of blood. Then, more dismembered bodies splash into the water. We get the sense that the pool water around Owen should be pretty bloody. Yet, when he surfaces, the water around him is completely clear, with no evidence of any blood or bodies.
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: The fan on the duty desk stops and starts randomly between camera shots. (00:54:10)
Continuity mistake: At the end of the movie, when Robert has been resurrected as a tricycle, the bell and ribbon keep moving back and forth from the right handle bar to the left one.
Continuity mistake: During the last scene, the strands of hair that Edgar has running down his face/right cheek are over the top of his head during some shots. Edgar is holding a book between both hands, so not moving the strands himself. (01:16:19 - 01:16:55)
Continuity mistake: Near the end, the orderly restrains Kristen and the doctor says not to drug them. The doctor is holding Kristen by the arms. However in the close up of her getting the injection her arms are free, only to be restrained again in the next shot.