1. The original name for the movie was actually Homeschooled.
2. Lindsay Lohan was originally cast as Regina George, but she was switched to the role of Cady because of her Freaky Friday success.
3. Rachel McAdams and Amanda Seyfried were neck and neck for the role of Regina.
4. A line cut from Kevin G.'s rap was, “It ain’t no trick/ I am this slick / All the ninth-grade ladies / Wanna suck my — WHAT!”
5. The film was almost forced to cut the "wide-set vagina" line.
6. Rajiv Surendra first auditioned for the part of Damian, but then he got called in for Kevin — a part originally written for an Asian person.
7. James Franco was considered for the role of Aaron Samuels.
8. Paramount didn't want Tim Meadows and Amy Poehler in the movie at first.
They were afraid Mean Girls would be perceived as a Saturday Night Live movie.
9. Jonathan Bennett used to make Lindsay Lohan blush (naturally) on camera.
10. When Daniel Franzese sang "Beautiful," the only person in the audience was his mom.
11. The very first scene filmed was the part where Kevin G. hands Cady his card.
12. But Lindsay Lohan missed the first day because she had pink eye.
13. Damian is based off Damian Holbrook, Tina Fey's best friend from high school.
14. There's a deleted scene (not actually filmed) of Damian auditioning for American Idol after high school.
15. There was almost an entirely different alternate ending to Mean Girls.
16. Amy Poehler gave Rajiv Surendra (Kevin G.) tips on body movement for his rap scene.
17. Last but not least, Glen Coco is REAL and he is beautiful.
