Continuity mistake: When Krug and the gang stop and they get the girls out, one of them is whittling a stick, and the stick goes from barked to skinned in less than a minute, which is too fast to do.
Continuity mistake: When Sadie is handed the beer while in the tub, her grip on the can changes.
Audio problem: Right after Mari gives the guy her necklace she says, "My father he works for," but her lips aren't moving.
Continuity mistake: When Mari gives her necklace to the guy, she puts it around his neck, but never clips it together, and when the shot changes it's on fine.
Continuity mistake: When they are driving in the woods, Kurg's cigar is in his mouth and then in his hand between shots.
Continuity mistake: When Mari holds her peace sign necklace, in the close-up it's opened up, shot changes and it's back in her hands.
Continuity mistake: After Mari gives the guy her necklace, in the next shot it's gone from his neck.
Continuity mistake: When the girl gets stabbed, the blood on her pants should not set in that fast.
Continuity mistake: When Mari opens her peace sign necklace, she has the box, then after the close-up the box is gone.
Continuity mistake: When Krug says, "That bitch bit me," Mari got out of the trunk instantly.
Continuity mistake: When the three gang members gang up on Mari's friend, her bruise on her cheek looks a lot better even though she got it about 20 minutes ago.
Audio problem: When Kurg gets bitten, his mouth does not match his screaming.
Character mistake: After Fred wakes up and spots Mrs. Collingwood, he comments about how she's up late. Yet the sun has been up long enough for her and her husband to find and bring back Mari's body.
Answer: She leaves him to bleed to death, which, without prompt medical attention, he surely will.