In one scene, Mother is flipping through photographs of Daniel's son Jake before lighting one on fire and waving it in his face. In the next shot which shows his reaction, she is still flipping through photographs despite the fact that she was holding out a flaming photo in the previous shot.
When everyone is tied to the column in the basement, the plastic on Daniel's mouth changes position several times.
A revolver with an empty cylinder, a double barrel shotgun that shoots forever without reloading and a nail gun that fires nails into the air without the safety depressed no one even attempted to get the weapons correct.
At 33:30, Rebecca DeMornay's character says "You've got gumption" and then the camera cuts to a different angle, and she says "good for you" but her lips don't move.
Around the 1:42 mark, a crew member's reflection is seen on the glass, to the left of the nurse.
At the end as Johnny, Lydia, and Mother drive away in the RV with the baby, as it pans down to show Mother holding the baby, an unidentified woman's dark-brown hair can be seen in the lower left corner of the screen.
Treshawn never gave Beth the code for the store alarm, only the combination to the safe.