Corrected entry: At the beginning of the movie when Cady is leaving her parents to go to school she almost gets hit by a bus you can hear her mom scream. In the next shot of her mom you see her scream but nothing comes out.
Correction: Cady's mom only screamed once. Her mouth is still open from her scream. When most people scream, they rarely shut their mouth right away.
Corrected entry: During the scene where Ms Norbury passes back the failing grade on the math tests and states she needs it signed by her parents, the test states it's the "Limits Test" but the test is on invergence and divergece of infinite series.
Correction: The entry says "invergence" but I think it should say "convergence"
Corrected entry: When Cady and Gretchen call Regina, without Regina knowing Gretchen is on the line, and then Karen is called, it is definitely night time outside the windows of Cady and Gretchen's. However, daylight pours in Karen and Regina's windows. They are all calling each other at the same time.
Correction: There was no daylight pouring into Karen's windows. If you look closely, it's just her lamps.
Corrected entry: Cady admits to writing the Burn Book. It's not possible for her to have been able to write the entire book by herself seeing as she's a new student, and all the events in the book did not occur in her time being at the school.
Correction: Either she could have collected stories from other students (either blatantly asking for them or just overhearing gossip), or it simply did not occur to the faculty in light of her confession.
Corrected entry: When Cady is at the math competition, she remembers the limits written on the blackboard behind Aaron's head. However, he was blocking the board and her attention was primarily focused on him, so she wouldn't be able to see what was behind him and therefore be able to picture it.
Correction: Well since she was able to pass calculus, she obviously looked at the board at least once, hence knowing what it looked like.
Corrected entry: When Karen is explaining to Cady how her breasts can tell when it's going to rain, you see a shot of both of them and Cady is beginning to smile/laugh, but then it cuts to just Cady and she has a straight face again.
Correction: In this scene, Cady is trying to take Karen seriously to gain her trust. She could have found Karen's idiotic "breasts can tell the weather" revelation amusing, and smiled, but then quickly made herself stop smiling before Karen noticed whilst the camera was on Karen.
Corrected entry: When Mr. Duvall calls all the junior girls to the gym, he says, "I have parents calling the school asking, 'Did someone get shot?'" But how would they even know about what was going on with the girls fighting? Even if they had parked outside waiting for dismissal (like Mrs. George did), there is no indication of any chaos until Cady and Regina burst out of the doors fighting, which is no cause for alarm.
Correction: Almost all of the kids have cell phones and one young lad is shown calling his mom and saying he's scared.
Corrected entry: After the principal pulls the fire alarm and the sprinklers go off, the girls all get wet. They are told to go directly to the gym, but when they go into the gym they're all dry.
Correction: Actually, if you look closely, you can see dark patches on Cady's shirt underneath her hair. This would suggest that her hair had recently been wet enough to create these splotches. Also Cady's hair looks damp. This is seen when she walks into the gym and everyone is staring at her.
Corrected entry: The girl standing on the table with a red t-shirt on who said that she had a lot of feelings admitted that she did not attend the school. Yet we can see her when all the girls met in the gym just after they all got soaked by the fire sprinkler in the front row. She also raised her hand stating that she was personally victimized by Regina George. So when and how did she get there in the first place?
Correction: It wouldn't be very hard for her to get into the school, even if she didn't go there. Perhaps she was visiting.
Corrected entry: When Cady bumps Ms. Norbury on the first day of school, if you go frame-by-frame, you can see that Norbury spills the drink away from herself. It's only in the next shot that the cup turns toward her.
Correction: If you have to go frame by frame, it's not a movie mistake.
Corrected entry: After the "Jingle Bell Rock" performance, the Plastics are standing together side-stage when Kevin G. comments to Cady "Good job, Africa." As Cady looks at him her Santa hat is almost down over her eyes, but the very next shot of her shows it pushed back up on her head perfectly.
Correction: The camera is away from her for a short moment so it's possible she quickly pushed it back up.
Corrected entry: When the girls are outside of Regina's house Gretchen tells Cady to check out Regina's mom's boob job. As Gretchen walks away you hear "they're hard as rocks" but neither Gretchen's mouth nor jaw is moving.
Correction: Gretchen's face isn't visible in the shot in question, therefore, it isn't possible to tell if her mouth is moving.
Corrected entry: Cady's Math teacher tells her that her parents need to sign a test so they know she's failing. They wouldn't have known she was failing from the test; it was a high D (68). It even says "D" on the test. How does that work out to an F?
Correction: Some schools have the policy that anything under a C- is failing.
Corrected entry: When Cady comes out of the bathroom at her party to talk to Aaron, she puts a cup down on top of a stack of CD's. In the next shot the cup has moved considerably.
Correction: I found this on the mistakes page for this film. "When the main character is confronted by her crush in her room, she puts her drink on a pile of CDs, the CD pile starts to fall in the background as there is a shot of the guy, a split second later the cup is on the table next to the CDs, and the CDs are piled differently." Please check for repeats before submitting.
Corrected entry: Wouldn't someone recognize Regina's handwriting? Surely at least a teacher would recognize Regina's handwriting after a whole year, or a student would recognize it.
Correction: Regina's handwriting wasn't so distinct that someone would instantly recognise it. The color or the style wasn't something that would immediately alert them to it being Regina. A teacher may recognise it, but with the large number of students unless they were paying special attention to everyone's individual style, then there is no way to say with certainity someone would have been able to tell it was Regina's.
Corrected entry: When Cady is in the mall with the plastics, one of the girls decides to play a trick on another girl by calling the girl's mother and pretending to have her pregnancy test results. The mother immediately faints. A moment later, however, the girl receives a call from her mother.
Correction: It is possible to only faint for a little while. I passed out once, hit the floor, thenn woke up a second or two later.
Corrected entry: In the scene where Cady and the other two girls are in the principal's office, the big female teacher comes in and says that the girls have gone wild. The principal goes out to look and you will see a girl in a red shirt to the left of him just as he walks in and you she is doing one of the fakest fights with another girl I have ever seen.
Correction: No, actually, they are just lazy, and you can see that they are crying, and hitting each other with a metal bat, beat that. They're just being girl, softly cat-fighting.
Corrected entry: When Tina Fey asks all the girls if they have ever been called a slut or a whore, everyone raises their hands including the big female teacher behind Tina Fey, but the very next shot shows the teacher behind Tina with her hand suddenly down.
Correction: This has been corrected before. She was raising her hand up tentatively, so she pulled it down quickly.
Corrected entry: When Regina was evicted from the Plastics dinner table, she said that her sweat pants are all that fit her. Yet, coming from Cady's party,she is wearing slim jeans. You can see them better when she is flooding the hallway with the photocopies of the Burn Book flyers.
Correction: She probably went and bought a pair of jeans that fit her after school.
Corrected entry: On the first day of school, Cady has a class with Janice and Damien and Ms. Norberry is the teacher. Throughout the rest of the movie, Ms. Norberry is Cady's math teacher in a different classroom and Janice and Damien aren't in the class.
Correction: Cady has homeroom with Janice and Damien. Ms. Norberry is also Cady's math teacher. In American schools, homeroom is a short non-instructional period before actual classes start for administrative purposes, roll-taking, announcements, etc. During the rest of the day, the teacher teaches a subject and a student in her homeroom might be in her class.