Completely unprepared for the cliquey teen environment she struggles to make friends and initially befriends the outcasts Janis (Lizzy Caplan) and Damian (Daniel Franzese).
Unexpectedly she is 'noticed' by the school's 'Queen Bee', Regina George (Rachel McAdams) who starts to cultivate her friendship. Janis and Damian warn Cady about how toxic Regina is and the trio decide to use this as an opportunity to take her and the other 'Plastics' down. However to take down a Mean Girl, Cady will have to become one.
No good will come of this.
Is this the acme of noughties motormouth teen snark? It probably is.
Famous for being memed before they were such a thing, Tina Fey's script is fantastic and it's laugh out loud funny pretty much from the outset. Yes it's just regulation High School comedy nonsense but it's almost the definitive example of it.
Still funny twenty years later and not as dated as you'd expect 8/10 highly recommended.