One rare film of the genre to break this mould is Heathers, which is quite possibly one of the best movies I have ever had the pleasure to watch. The protagonist, Veronica Sawyer, (Winona Ryder) is a cynical and witty girl trapped within the confines of the popular clique, the 'Heathers'. That's right, all of her friends in this group are called Heather. They're all bitches too, with their leader maliciously ruling the school through a combination of sex appeal and intimidation. All of the Heathers revolve around what you could call the Mother Heather, while Veronica exists in a vicious state, hating her narcissistic friends and moaning about them in her diary. Everything changes with the appearance of the new kid, Jason Dean (Christian Slater).
★★★★ (and a half - don't laugh at my technological retardation)