Continuity: In this movie, there are two times when Sherman Klump feeds Molly the hamster. They occur during the beginning and the middle of the movie. The first time, Sherman is wearing a brown coat, and you can see it slightly when he gives Molly her food. The second time he feeds her, he is wearing a cream-colored sweater, but as he extends his arm out, his wrist shows that he is still wearing that brown coat. They simply duplicated the first feeding scene instead of filming a second one.

Continuity: At the first family dinner scene, grandma starts coughing. The camera shows her from the front with a glass of water to drink.  The camera then switches to the side and shows her with a glass of coke in front of her. Her daughter says "Momma drink some water" and suddenly it turns into a glass of water again.