Continuity mistake: When the heroes dedicate their boat, Demi Moore's character knocks a hole in the side of the boat. In subsequent shots, the hole looks like it's been partially repaired.
Continuity mistake: When Hoops is talking to Demi Moore's character on the beach and he draws her a picture of a gorilla, you can see the page is already drawn on before the animation scene takes place.
Factual error: When Ack Ack is collecting shells on the beach for his father, he's really collecting shell casings... which should be where the guns are fired, not where the explosions are.
Continuity mistake: The horns on John Cusack's Viking helmet alternate between the front and back of the helmet in different shots - apparently, he had it on backwards for a while.
Visible crew/equipment: During the boat race when the rabid dolphin captures the man, the little girl raises out of the top. You can see a crew man inside the hole on the right of the girl.
Continuity mistake: When Hoops is drawing a picture for Cassandra on the beach, he is standing facing the boat he is drawing on. When he helps Cassandra off the boat, he turns around. They talk briefly and as Cassandra is walking away, Hoops is unable to move cause he has sunk into the sand. He wasn't standing facing away from the boat long enough to sink that far into the sand.
Factual error: When the guys are putting the boat together, one of them cuts the mast off the top of the Stork and Sons garage and it falls to the ground. The mast should have shattered from being dropped from such a high height, or caused some sort of damage.
