Factual error: In the scene with the giant hamster, the hamster is making squeaking noises. These unique noises are actually made only by guinea-pigs, not hamsters. Hamsters don't make any sounds at all. (01:14:45)
Factual error: In the scene where Professor Klump comes into Denise's classroom while class is in session, he is making his way through a bunch of students trying to get to a vacant seat. On stage, the shadow of Klump goes across the viewing screen as if he is walking through the projection of the overhead projector. The problem is, the overhead projector can be seen on stage with Denise, so how could Klump have walked through the image?