Deliberate mistake: When Cady is breaking the 'plastic' crown into bits and throwing the pieces to people in the crowd, it's not possible to have that many pieces from that one crown. She must give out at least 7 or 8 big chunks, which just doesn't truly reflect the size of the crown.
Mean Girls (2004)
1 deliberate mistake
Directed by: Mark Waters, Mark S. Waters
Starring: Rachel McAdams, Amanda Seyfried, Lindsay Lohan, Tina Fey, Lizzy Caplan, Lacey Chabert, Jonathan Bennett, Neil Flynn, Tim Meadows, Daniel Franzese

Continuity mistake: After the Halloween party, when Cady walks into Damian and Janis' house, Damian gets scared and tosses all of the popcorn out of his bowl. In the next shot of Damian his bowl is full again. (00:29:05)
More quotes from Mean GirlsMore trivia for Mean Girls
Question: Why did the coach act so paranoid about safe sex if he was actually sleeping with a student?
Answer: He wanted to appear to be strict and "uptight" about sex, so people would be less likely to believe any rumors about him.





Answer: Precisely because he was sleeping with a student. Getting her pregnant would bring their affair out into the open and create a scandal for the whole nation to know what he was up to. Therefore safe sex was really important to him.
The_Iceman
True, but since he was spending time with her, he could make sure that birth control was being used (i.e. him using a condom). I think he was trying to appear "uptight" about sex, so he could be the least likely suspect.