Continuity mistake: When Alison gets the gun from Zep and aims it at him, the gun is in her left hand. In the next shot it's in her right hand, and then it moves back to her left hand again. This is not an artifact of changing camera angles, you can clearly see the different hands holding the gun.
xx:xx:xxGrigory the Wanderer
Continuity mistake: In the scene where. Lawrence and Adam find the 'X' on the wall, there is a continuity error. Right after they find the 'X', the lights are turned on and there is the shape of a square on the wall (the cavity where the box is hidden). Before they find the 'X' there is no box or any dirty lines where the cavity is.
Continuity mistake: When Dr. Lawrence opened his envelope he got a key in it. When he tried it on the lock on his chain and it failed to open, Adam then asks to try it. Right when Adam asks for it, he puts his tape and envelope down separate, but when reaches for his tape again, it has ended up inside the envelope.
Continuity mistake: When Adam throws the picture that he found in Lawrence's wallet to him, the picture lands next to the rectangular piece of tile that Lawrence uses in the immediate next shot to bring the picture closer to him. The tile moves from in front of him (given it's proximity to the photo) to right beside his right arm/hand. It "moved" about two feet.
Continuity mistake: When Tapp and Sing go to Jigsaw's place and find the guy strapped to the chair, they uncover him, then re-cover him to see what Jigsaw is going to do. When Jigsaw pulls the sheet off, one side is still caught on the drill bits. When he starts the drills the sheet is completely clear.
Continuity mistake: Jigsaw's thumb moves between shots after Adam gets the mini cassette recorder out of his hands. You can see Jigsaw's thumb, in the closeup shot, slide down to a position where it's lying horizontal and flat on the floor as the mini cassette recorder is being slid out of his hand. In the next shot, an overhead, you can see that his thumb has moved and is now more curled and in a more vertical position to where just the tip is touching the floor. Jigsaw isn't dead, so he could have moved, but this shot is an *instant* cut, he had no time to move.
Add timeNick Bylsma
Continuity mistake: The bloody handprint on Lawrence's shoulder that Adam makes at the end is visible before he actually makes it. Second, when Adam finds the tape recorder, it flashes back to Lawrence saying "why?" before Zep tells him it's the rules and the handprint is also visible, but shouldn't be there as Adam made it after he killed Zep.