Revealing mistake: Lizzie has black nail polish and the same size of nails throughout the entire movie. Supposedly, Lizzie and Isabella are different people. But, when Isabella comes back, you can see she has the same color nail polish and the same size of nails as Lizzie. I don't think it's just a coincidence.
Revealing mistake: In the middle of the scene where it shows what the class does throughout the week, Dewey is shown playing a bass guitar with no strings. (00:50:00)
Revealing mistake: Don't worry, Aunt Sally isn't really dead. She's still breathing in the shots where people come to look at her in her coffin.
Revealing mistake: In the scene in which Honey is distributing posters with her father, as the camera pans out after they put up the poster you can see "Queen Video" on a sign across the street, indicating not New York City but Queen St. W in Toronto. (01:15:00 - 01:16:00)
Revealing mistake: At the end of the movie when the Grandpa and grandson are tackled after being given the 'fortune cookies' right at the moment of impact the little boy has been replaced by a stunt double which is a grown man dressed in the same clothes. Like the dude has wrinkles and doesn't even resemble the boy at all.