Mean Girls hidden details and facts about the 2004 film
Mean Girls hidden details begin with its source: a nonfiction parenting book. Tina Fey turned Rosalind Wiseman's Queen Bees and Wannabes into one of the most quoted comedies of the 2000s, and the production behind it is full of near-misses.
Directed by Mark Waters and produced by Lorne Michaels, the film opened in the US on April 30, 2004. It cost around $17 million to $18 million and grossed about $130 million worldwide. These are the details and production facts most fans do not know.
It started as a self-help book
Fey loosely based the film on Wiseman's 2002 book about girls' cliques and social hierarchies. Because the book is nonfiction, Fey invented the plot, the Plastics and the Burn Book from scratch.
She drew on her own years at Upper Darby High School in Pennsylvania and on Chicago-area schools to create the fictional North Shore High School. Fey brought the idea to Lorne Michaels, who took it to Paramount.
Casting that almost went differently
Lindsay Lohan was first considered for Regina George, but she was cast as Cady Heron. Rachel McAdams, who had auditioned for Cady, became Regina. At a 2014 cast reunion reported by KQED, Lacey Chabert said she had not thought she should play Gretchen Wieners.
Jonathan Bennett replaced the actor originally cast as Aaron Samuels shortly before filming. Amy Poehler, who plays Regina's mother, was only a few years older than McAdams, with styling covering the gap.
Evanston on screen, Toronto in reality
The story is set in Evanston, Illinois, but most of the film was shot in Toronto, Ontario, with extra filming in Montclair, New Jersey. Principal photography ran from September 27 to November 25, 2003. If the suburban streets feel slightly un-American on a rewatch, that is why.
Small facts about the script
A few details change how familiar scenes read.
- The working title was Homeschooled, a nod to Cady's background before North Shore
- Fey also plays the maths teacher Ms Norbury, and gave herself some of the film's sharpest lines
- Earlier drafts were reportedly much raunchier than the final cut
- Chabert turned 21 during the mall shoot, and cast and extras sang to her on set
How October 3 became Mean Girls Day
Cady's line telling the audience that Aaron asked her what day it was, and that it was October 3rd, is a throwaway moment in the film. Online fans turned it into an annual event, and October 3 is now widely celebrated as Mean Girls Day on social media.
The film's afterlife went further: a Broadway musical followed, and a film version of that musical was released in 2024. The 2023 book So Fetch by Jen Chaney covers the making of the original in detail.
Mean Girls hidden details on a rewatch
Watch the Toronto locations, which stand in for suburban Illinois, and notice how much of the film's language comes from Fey's eye for real school social life rather than from the self-help book. Ms Norbury's lines about girls calling each other names echo the themes of Queen Bees and Wannabes most directly.
The Burn Book is the film's best invention. It is the device that turns Wiseman's descriptions of cliques into a plot, and its release in the school corridors is the moment the story's social order collapses. Look out, too, for the casting choices that nearly went another way: Lohan as the newcomer rather than the queen bee, and McAdams in a role she originally did not audition for.
Questions people ask
What book is Mean Girls based on?
Rosalind Wiseman's nonfiction book Queen Bees and Wannabes, about cliques among teenage girls.
Was Lindsay Lohan supposed to play Regina George?
She was first considered for Regina but was cast as Cady, with Rachel McAdams playing Regina.
Where was Mean Girls filmed?
Mostly in Toronto, Ontario, with some filming in Montclair, New Jersey, although the story is set in Evanston, Illinois.