Continuity: In the raft scene the boy at the front right, from his view, is kneeling on his left leg. When the camera cuts behind them he's suddenly kneeling on his right leg and remains on this leg through every other angle.
Revealing: When the skull the children leave at the caretaker's hut falls over and engulfs him in flames you can see the stuntman's protective head gear.
Continuity: The amount of foam and shampoo in the blonde girl's hair in the outdoor shower is inconsistent throughout the entire scene between all camera angles.
Revealing: In the raft scene, the caretaker cuts off the fingers of one child with hedge cutters, if you watch it in slow motion you can see the pink foam inside the dummy hand.
Revealing: In the infamous raft scene, it is so obvious the child who gets stabbed in the throat with the hedge cutters is a real head attached to a dummy body, one; because his neck is too long and two; when he moves his head his neck stays ridged.
Audio problem: Throughout the raft scene it is so obvious that all the yelling and talking from the excited children is dubbed - through most of any dialogue their mouths are shut.
Continuity: In the raft scene, when the caretaker slashes his first victim his hedge cutters get stuck in a tree branch and we seem them covered in blood, but then when he pulls them out and raises them into the air to stab his second victim they're clean and shiny.
Continuity: When the black doctor convinces the white doctor to view the caretaker's burn in the hospital, the white doctor's tie goes from crooked around his neck to straight between shots.