Character mistake: When Mikey looks at the Picture Day schedule, he points out that 4th grade is going last. However, the schedule says they are after 3rd grade and before 5th grade, actually making them fifth. The faculty is actually listed last on the schedule.
Character mistake: Gretchen finds a note on the lid of the treasure chest and reads it. We see a close-up of the note in her hands. The problem is that what Gretchen reads is not entirely accurate to what is on the note, and the whole last half of what she reads is not even written on the note; it gets cut off at the bottom.
