Continuity mistake: When the nuns are complaining to Gilbert Gottfried about Junior, the head nun's wart above her eye changes color throughout the scene. It varies from light in colour to dark in colour several times.
Continuity mistake: When the nuns are arguing with Gilbert Gottfried, at the beginning of the scene there is no bell on the nun's desk, but when Junior is standing by the desk the bell is suddenly there.
Continuity mistake: At the end of the movie, a car goes off a ramp and is turned upside down. After Jr.'s dad gets shot, watch the tire. It is spinning and a few seconds later it isn't turning anymore. A few seconds later it's turning again.
Continuity mistake: When Jr. is driving with John Ritter on the top of the car, just before they go through the store windows, the cars in the parking lot change significantly from different angles. In one shot a pickup truck is backing out which would block them, but it is gone in the next shot.
Continuity mistake: In the dining room scene at the nunnery, just after the meatball falls from the ceiling to land on the sister, Junior has his hands in front of his face laughing. In the very next shot Junior's hands are down at his side.
Continuity mistake: After Junior's first night at the home, John Ritter tells Junior they're going camping and Junior says he'd rather be watching cartoons. When Junior is speaking his left arm is up behind his head. In the next shot from behind Junior when John Ritter approaches him, the boy's arm is down at his side.
Chosen answer: Ben took (stole) his neighbor Roy's station wagon, which was packed for going hunting. Ben apparently improvised by taking the red backpack; the contents of the backpack would be whatever a pre-adolescent boy or girl would put in a backpack to go hunting with his/her father.
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