Other mistake: In the scene where Marnie's mother is in the Supermarket paying for her groceries and complaining about Marnie never calling. To pay, she swipes her debit card but has it turned the wrong way with the black magnetic strip up. She then enters her pin number and gets her receipt. With the strip up, the machine would have showed an error message and she would have had to slide her card again. (00:15:35)
Continuity mistake: After Marnie and Dylan get out of the cab and walk up to the first building, they're not carrying the luggage, then in the next scene, they have the luggage again.
Other mistake: The title of the movie spells Kalabar with a "K", but the ending credits spells it with a "C".
Continuity mistake: When Aggie and Marnie are walking when they first get to Halloweentown, the grandma's arm goes from being locked into Marnie's arm to being free, to being locked in with Marnie's arm again.
Character mistake: When Gwen Piper is talking to Aggie in the soup pot at the beginning of the movie, Aggie addresses Gwen as Linda.
Suggested correction: Aggie says Gwen darling.
