Visible crew/equipment: At the very end of the movie, during the best student award, while the graduates are applauding you can see a sound engineer with a microphone pole on the right side.
Great sites
Mistakes
Sometimes in some scenes, you can see Mrs. Tingle's bra before they even open her pyjama jacket. For example, when Luke is feeding her the hamburger. See more...
Teaching Mrs. Tingle mistakes
Plot hole: Mrs. Tingle was tied to bed for longer time, fed by her students, but what about going to toilet within this period?
Other: Sometimes in some scenes, you can see Mrs. Tingle's bra before they even open her pyjama jacket. For example, when Luke is feeding her the hamburger.