Visible crew/equipment: When Bobby grabs the key for Cale's noose. There is a shadow on the door of a boom mic. (00:53:50)
Continuity mistake: When on the chat show, the mug belonging to the host is constantly moving. Check the handle. (00:13:30)
Continuity mistake: Brad gets blood all up his face when he is hit by the saw. When Ryan and Brad decided to let Dina die, the blood has gone from Brads face. (00:06:40)
Continuity mistake: Gibbs smashes the glass at the junkyard with a shotgun. The smashed glass changes between shots. (01:26:20)
Continuity mistake: The second time Bobby tries to pull the hook out of Nina's mouth, he grabs the string so it is taught. Camera changes and the string is slack. Camera changes again, and the string is being pulled tight again. (00:40:25)
Continuity mistake: In the public trap we see Ryan's overalls are done up. However, in one shot they are undone, then done up again. (00:05:50)
Visible crew/equipment: When Billy talks to Brad and Ryan about how Dina has manipulated them, there is a close up of Ryan and you can see a shadow move over him. No-one else is near by. (00:04:20)
Continuity mistake: In Saw, Adam crushes Zepp's head with the toilet block lid. However, when we see the bathroom in this film, Zepp's body shows no sign of this. (01:20:20)
Plot hole: Gideon speaks to Jill about her fingerprints being all over the bear trap. When he does he says that there is a new game going on, referring to Bobby's game. However, the police are unaware of this game at this point. He can't be referring to the garage trap as he says that the game is going on, and the garage trap has already happened. (00:35:00)
Continuity mistake: When Gideon is saying to the Coroner about if that bloke has a cavity he wants to know about, the body bag is open. Camera cuts to Gideon walking over to the door and the bag is done up instantly. (00:28:40)
Continuity mistake: When Gideon is answering the phone and looking at the woman, he raises the phone to his ear, camera cuts and he raises it again. (00:27:00)
Continuity mistake: When we see Gibson looking at Jill in the interview room we see a tissue lay across Jill's bag. When he walks into the interview room the tissue is now stuck up. (00:11:00)
Continuity mistake: When Jill is running into the evidence room, the dead cop has got his trouser leg up revealing some skin. When Hoffman is locking Jill into the chair, look out the door and the trouser leg is down. (01:12:10 - 01:15:10)
Continuity mistake: When we see John getting his copy of Bobby's book signed, the way Bobby is holding the book changes depending on the angle. (00:42:30)
Continuity mistake: On the chat show, the host says, "Tell me about the actual experience". Just before this sentence, the camera does a quick cut and the host's hands switch places instantly. (00:13:40)
Continuity mistake: When on the chat show, Bobby says about the trap being "Something I never anticipated". When he does, Cale's hands move instantly. In one shot they are stretched out, in another they are not. (00:13:35)
Continuity mistake: When Jill notices the trike there is a shadow by the bike. When the angle changes, the shadow has gone. (00:16:40)
Continuity mistake: When Gibson is reviewing the Hoffman DVD, he says, "I recognise it". His hands move down his tie instantly. (00:44:00)
Continuity mistake: The blood around Bobby's face after he pulls his teeth keeps disappearing and reappearing when he's talking to Joyce. (01:08:50)
Continuity mistake: When Jill is in the police interview room, the key round her neck keeps moving position, as does the mug by her. (00:10:30)
Answer: Dr. Gordon from the 1st movie, and Ryan and Brad from the trap in the beginning of this movie.
derrick g