Continuity mistake: When Brian Schwartz drives away in his sports car, you can hear him shift 4 times. When they show a shot of his car go by, he is only going about 5 miles per hour. (00:48:40)
Continuity mistake: Coach Brakett (Boyd Gaines) finally convinces the young gym teacher, Honeywell (Kim Cattrall), to go with him to the boys' locker room. Once they are up there he disrobes her and gets on top of her. When they cut to a close-up, you can tell that he has longer hair than just two seconds before. (00:58:40 - 00:59:40)
Continuity mistake: When Timmy cleans out his gym locker, he took only two items from the locker, stuffing them in the basket haphazardly. In the next shot when he is at the counter returning them to the phys ed coach, the basket is now full of at least six different items, all neatly folded. (00:52:45)
Factual error: This movie was set in 1954, but in numerous street scenes more modern "cobrahead" streetlight fixtures are seen. That type of streetlight was first introduced in 1957.
Revealing mistake: When Jarvis and Tommy are driving to school, and he asked if they got the black guy, the sun is overhead - but when they get to school, and they're walking and talking about it, the sun is to the left - like it's mid-morning around 930. You can see the shifts in the sun for about a span of about 4 minutes during that time. (00:04:50)