- A scene from the trailer did not appear in the theater version. Damian helped Katie set a trap on the table in the school cafeteria, and wanted Regina to be covered with food to make a public shame, but Karen became Victim. Later, this scene appeared in the cut back of the DVD.
- The film was almost rated as R-rated.
- Regina’s name in the film means queen in Latin.
- The name of the rough girl Janice Ian in the film comes from a folk singer. When the girls fight in Regina's house, the background music that plays is "At Seventeen" written by Janice Ian.
- Amy Pohar, who plays Mrs. George, is only five years older than Rachel McAdams, who plays her daughter.
- Amanda Seyfried, who played Karen, was originally the first candidate to play Katie.
- Lindsay Lohan was originally the first candidate to play Regina. Because she herself considered that playing this role might damage her public image, she changed her role as Katie. Rachel McAdams played Regina and used the production People say: "Only a pretty girl can act as a mean girl."
- Tim Meadows, who played the principal, suffered a broken hand during filming.
- Screenwriter and producer Tina Fei has confessed that Jonathan Bennett was chosen because he looks a lot like Jimmy Fallon.
- The scene where Katie meets Jason and Gretchen kissing at the party is very different from the script. In the script, Katie bumps into Gretchen giving Jason blowjob. In order to reach the level of PG-13, she had to change this scene.
- Ashley Tisdale had hoped to play Karen in the film.
Mean Girls behind the scenes gags
2022-01-25 08:03
Extended Reading
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Shane Oman: Why are you eating a Kalteen bar?
Regina: I'm starving.
Shane Oman: Man, I hate those things. Coach Carr makes us eat those when we want to move up a weight class.
Regina: What?
Shane Oman: They make you gain weight like crazy.
Regina: Motherf -
[she spits out the bite of the bar that she was chewing, and then she lets out a high-pitched scream]
Regina: Aaaaaaaah!
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Cady: [after seeing Regina in mirror] Regina, wow, you look really beautiful.
Regina: I'm wearing a spinal halo.
Cady: Look, I'm really sorry about the bus. I feel like it's all my fault.
Regina: Stopping making this about you. I'm the one that got hit by the bus.
Cady: I'm really sorry about all the other stuff too.
Regina: Okay, I'm going to forgive you because I'm a very Zen person... and I'm on a lot of pain medication right now.
Cady: [Cady smiles]
Regina: You know Aaron really does like you. He's always talking about how unusual you are and it really pissed me off. Like this one time, I got this really expensive doll house from Germany, but I never played with it. So my mom wanted to give it to my cousin. But even though I didn't want it...
Cady: You begged your mom to let you keep it?
Regina: No. I threw it down the stairs.
[they giggle]
Regina: I didn't want anyone else to have it. But that's just me.
Mrs. George: Regina! There about to announce the queen.
[sees Cady]
Mrs. George: Hello.
Regina: Can you believe my f-ing mom is here?
Regina: [they giggle]
Regina: Bye.
[waves]