Sunlight and daylight sky can be seen in the first person "vine cam" leading up to the attack on Chester the dog despite previous shots showing it being dark out and people are preparing for bed.
When the little boy opens the present from his sister, he clearly pulls out a box. The next shot, he is holding the plastic carnivorous plant.
Actor Eddy Eby's name is misspelled in the opening credits as Edy Eby.
The camera is visible in the reflection of the green truck.
The boom mic and the hand holding it is visible in the reflection of a bus door window.