Visible crew/equipment: Near the end of the chainsaw sequence, a crewmember's hand is visible on Krug's back.
Revealing mistake: When Weasel says, "How's your back, baby?" to Phyllis, she spits in his face, but Weasel closes his eyes before she spits.
Revealing mistake: When the killers first pull out Phyllis's severed arm to show Mari, the fingers are moving.
Visible crew/equipment: When the girls go in Krug's hideout and he starts pushing them around, Junior steps in to help them and he gets knocked backwards. When this happens you can see the cameraman push him in the back so that he wont fall into the camera.
Revealing mistake: Mari breathes and moves when her parents find her body (the original intention was that she should still be alive at this point and would identify her attackers before dying).
Continuity mistake: When Weasel and Sadie are chasing Phyllis through the woods, Sadie takes off her jacket and throws it on the ground. It later reappears and then disappears again.
Continuity mistake: When the gang member sees Mari's friend across the river, he stops and his hand is on a tree. Shot changes and he's not holding a tree.
Character mistake: The police radio identifies the fugitives' car as a 1958 Cadillac, but it is a 1962.
Revealing mistake: When Mari asks if the guy has any girl friends, when Mari leans back there are Black dots on her face from a dirty camera lense.
Revealing mistake: When Krug hits Mari's friend after she bit him, you can see that he doesn't hit her. Her hair moves, but that's from the air from his hand.
Continuity mistake: When Sadie is in the tub, her cigar comes out of nowhere.
Continuity mistake: When the gang are bringing the girls to the trunk, junior holds onto the rope as the stairs are going up and he goes up with it. Next shot he's next to the car.
Plot hole: When in the woods, Mari's friend asks to put her clothes on. The man says that its OK, yet Mari puts on her clothes too, even though the man said that only the other girl could.
Continuity mistake: In the very beginning when Mari's mom is saying that God would not have given us clothes, Mari's hands are down. The shot changes, then they are up.
Visible crew/equipment: During the whole cake part, there is a little piece of black string in the top left hand corner.
Continuity mistake: When Saide is in the tub, she moves about a foot out of the water.
Factual error: When the girl gets stabbed in the back, the blood should not come out that fast or go everywhere.
Continuity mistake: When Mari says she feels like a women, she stands up and is facing back. The shot changes and she's forward. (You can tell by the white buttons.)
Continuity mistake: When the girl in blue is pulled out of the trunk she is lying down, but shot changes and she's sitting up.
Continuity mistake: When Mari and her friend sit on the rock in the woods, Mari is facing forward putting the bottle to her lips, but shot changes to a close-up and she's looking at Mari with no bottle.
Answer: She leaves him to bleed to death, which, without prompt medical attention, he surely will.