Miriam tells Helga to "bring in the mail", but there's a mail slot in the door, so the mail is already "in".
In the scene with Phoebe and Gloria, the top part of Phoebe's hair turns yellow in some scenes, making it look as if Phoebe is wearing a cap of some sort.
Nadine's hair was brown when the crowd was cheering that Helga reappeared.
In the end credits, Dan Povenmire is credited as "Don", and it says "Animatic Technican" instead of "Animatic Technician".
In the description on the back cover of the 2002 Australian VHS "Nicktoons: Laugh-A-Minute", Sid is mistakenly called "Stu".
