Nick Bylsma

Continuity mistake: Watch the light when Matthews is breaking the bone so that he can slide his foot out of the lock (right after he's done smashing it with the lid). The flashlight is suppose to be on the floor next to the foot (it was in the previous shot) but the light source is moving all around as he places his hands on his foot and then breaks it. It's very noticeable as soon as the break happens, the light source moves down and to the left of the screen. The flashlight is back on the ground, next to the foot, in the very next shot. (00:02:10)

Nick Bylsma

Continuity mistake: When Matthews is smashing his foot with the toilet bowl lid, he probably hits his foot a good six or seven times, and one of the times he also glances against the flashlight and it rolls a bit to the side. The next time you see the flashlight it's pointed right back at his foot like it was in the previous shots. (He was still pounding away on his foot, so he didn't stop and realign it or anything.) (00:03:00)

Nick Bylsma

Continuity mistake: There is a closeup shot of Matthew's foot right before he starts to smash it with the broken piece of the toilet bowl lid. He's placing the flashlight on the floor next to his foot and you can see that the sock is back on his foot, even though he took it off previously (right before he first attempted to saw through his leg). (00:03:20)

Nick Bylsma

Continuity mistake: In the "Twisting Crucifix" device scene the tear on the man's face jumps from his right eye, to his left, then disappears, then reappears again throughout the shots.

Nick Bylsma

Continuity mistake: The drill that Lynn uses on Jigsaw's skull has a white piece of tape on the end of the drill bit a short distance from the end, presumably to mark the thickness of his skull so she knows where to stop. In one shot (during the drilling scene) the piece of tape moves a good two inches farther up on the drill bit, but it's back down in the very next shot. (01:04:05)

Nick Bylsma