Continuity mistake: John is taken down by a trap set by Hansel and puts a big hole in his back. He gets back up and is shot down by the Sheriff. As he is getting up a second time, it shows his back. There is no hole in his back or shirt before the Sheriff finishes him off. It also shows no hole or blood on his back in one shot when he is chasing with the bear trap before he is shot the first time. (01:16:45)
Revealing mistake: At the dinner table when Lilith and Gretel are eating lunch with Lilith's "sons", Gretel takes a knife and stabs the boy closes to her in the hand. In the close up of the hand, it looks obviously rubber. That and there is already blood under it before the knife even hits. (00:37:25)
Continuity mistake: After calling Gretel stupid meat, H&G are sitting on her couch. Hansel is wounded and leaning back, his head back. In the same shot, he then leans forward so he is slumped over and hangs his head. It then cuts to a further shot and suddenly he is leaning back again. (01:21:05)
Continuity mistake: As Lilith is calling Gretel stupid meat, she is holding a bowl and is standing in front of her and Hansel. The side shots show Lilith's hand and bowl barely visible in the left side of the fame. Close ups on Lilith show she does not move any closer. But in the later side shots, she is suddenly much closer, having her torso and hands visible in the side shots. (01:20:35)
Continuity mistake: While on the run through the woods, H&G set a trap for John. John hits it perfectly and a big sharp branch swings out and impales his back. As he pulls himself free from it, blood is like a geyser gushing out of the wound. He falls to the ground a half second later and suddenly there is no gush of blood. (01:15:50)
Continuity mistake: At the table, Gretel stabs John in the left hand with a knife. The wound in his hand is never seen again in the film and his hand looks fine, except in the last part where he is chasing H&G. It is most noticeable when he is climbing out of the fire place escape route after being blocked in. (00:37:25 - 01:13:35)
Continuity mistake: H&G's dad and his fiancée enter Lilith's house. As they do, the girl's hand is on the door in a close up, and she slides it across and drops her arm to her side letting go of the door. It cuts to a high angle, and you see her repeat this action. (01:08:35)
Plot hole: After Lilith kills Officer Jerry, the Sheriff goes to her bakery and finds a large blood trail leading right to him where she stashed Jerry's body. If she was going to go through the trouble to try and move and hide the body, she would have cleaned up the blood trail too, or moving the body out of site was completely pointless. (01:07:30)
Continuity mistake: When Hansel and Gretel are hiding from John, a jar of worms has been broken on the table they are under. Some worms fall through and land on Gretel's face, leaving dirt. The shot cuts to John, then right back to Gretel and suddenly her face has no dirt. Throughout that entire sequence, dirt and worms keep appearing and disappearing from her face and neck. (00:48:30)
Revealing mistake: The boy who escapes runs right past the Lilith son named John. John puts an arrow in this guy's back before Lilith calls him inside. As the boy gets back up to run, you can see a bulge under his shirt where the arrow is held. And as he moves, the arrow bobs and bounces around like it's super lose and not really in his back. (00:46:45)
Plot hole: The room that the teens are kept in while being fattened up is locked up by a single, wooden, thin door with a conventional doorknob as the only lock. That door is way too flimsy to hold them. Two strong teenage boys with two girls there as well could have easily broken the door down with little effort and escaped.
Continuity mistake: The second girl shown to be in the cooking process is laid out on a table with men working her over. She has her hips lying on their side so her butt is sideways with her legs bent forward some, and she is mostly facing up. But then the shot changes to one of the guys skewering her through her anal area, and suddenly her hips a flush with the table, her hips side to side, and the shot makes it so she would be lying on her stomach, but then cuts and she is on her back and side again. (00:27:00)
Continuity mistake: When Gretel is sweeping the broken vase, she sees a bloody fake fingernail under a table. The show of her shows her shadow on the wall next to the nail. But the close up of the nail has no shadows on the wall. (00:26:35)
Continuity mistake: After Gretel wakes up with a headache, Lilith offers her a piece of candy to help. Gretel is looking right at Lilith in one shot, it then cuts and she is looking away and down. (00:19:55)
Continuity mistake: Gretel wakes up after she was put to sleep and she says she has a headache. In the close up, she just has a couple of fingers pressed against the side of her head. It cuts and suddenly her hand is over her forehead. (00:19:35)
Continuity mistake: Hansel falls asleep in Lilith's house after his leg is injured, and Lilith and Gretel move him to the couch. In the close up, his head is facing up to his left. The shot cuts and suddenly his head has slumped over looking down to his right. (00:15:20)
Continuity mistake: After Hansel storms off to the woods after their dad and his girlfriend announce they are getting married, their dad walks up to Gretel. His face looks like he is about to cry and he is looking right at Gretel, and still walking. It cuts to a different angle and suddenly her dad is standing still at her already, and he is looking slightly down with a more calm face. (00:09:25)
Revealing mistake: The girl who breaks her knee in the beginning is taken back and the witches begin tying her up with barbed wire. As the wire is wrapped around her hands and wrists, it is obviously rubber. The wires bend way too easily, and the barbs even bend like nothing. (00:01:45)
Continuity mistake: Right in the beginning of the film, a girl breaks out and is trying to escape the witches. She falls down a hole and you see her knee snap. The bone is protruding out, like right at the side of her knee cap and blood gushes. Yet moments later she starts crawling backwards on her back and is using both legs perfectly fine. (00:01:40)
Continuity mistake: When H&G's dad finds the bear trap, Hansel's skate board is still next to it. When the shot cuts to the dad picking up the bear trap, the skateboard has vanished. (01:06:20)