Question: Not sure this is a movie mistake. When the mom is sawing off her own head, wouldn't the sawing have stopped once she cut through her spinal cord? The muscles in her arms/hands would have gone limp and her head would not completely fall off - though it would fall forward. You don't actually see her head fall but you hear the bang on the floor and her head is missing at the end.
Question: Was the daughter possessed the entire time before she died? I noticed at the end one of the cult members at the end said something about the demon being released from the female host.
Question: After Peter is possessed by Charlie and he clicks his tongue for the first time after standing up, he starts to walk towards the tree house and heads off screen. The camera lingers though, and focuses in on something lying on the ground in the background. What is that on the ground? It almost looks like a dead dog or possibly the dead dear from earlier, but the shape isn't quite right. It does appear to be some sort of animal but I can't make it out. What is that the camera lingered on right then? And why? It's not shown again. (01:57:45)