Mean Girls

1.  Mean Girls

Mean Girls is the ultimate girl rivalry flick of the decade. Starring Lindsay Lohan, Rachel McAdams, Amanda Seyfreid, Lizzy Caplan & Lacey Chabert, the film comically describes how female social cliques operate in high school. 
2.  Bring It On

Bring It On hit theaters ten years ago and shed a whole new light on the world of cheerleading. The flick, starring Kirsten Dunst & Gabrielle Union, centers around two competing high school cheer squads and shows the lengths they will go to in order to win. 
3.  Jawbreaker

Three of the most popular girls in high school accidentally kill the prom queen with a jaw-breaker while kidnapping her as a birthday surprise.  Instead of feeling any remorse or regret, the new leader of the clique is excited by the idea that she will move up the popularity ladder and be named prom queen. 
4.  My Best Friend's Wedding 

In this cinematic classic, a woman's longtime friend reveals that he is engaged, which causes her to realize she is in love with him!  In a desperate attempt to win her longtime friend over romantically, she engages in sabotage in hopes of breaking the soon-to-be-married couple up.  The film stars Julia Roberts, Cameron Diaz, Dermot Mulroney & Rupert Everett and, to this day, is one of the highest grossing films of all time. 
5.  The Heathers

This dark comedy, starring Shannen Doherty & Winona Ryder, centers around a clique of four girls.  Three of them are named Heather while one is named Veronica.  The girls rule the school by means of intimidation, sex appeal and manipulation. Veronica tries to return to a life of normalcy with her old friends -- who the 'Heathers' find to be nerdy and geeky. 

6.  Sydney White

Sydney White, starring the adorable Amanda Bynes, is based loosely off of the Disney classic, Snow White -- but is centered around a college Greek system.  A sorority president (Sara Paxton) bans Sydney (Bynes) from joining their sorority.  Humiliated,  Sydney joins seven other girls to create a sorority called 'The Vortex,' but they are faced with many obstacles that the Kappas (Paxton's house) put in front of them in hopes of kicking them off campus. 
7.  Sleepover

This teen-friendly flick stars Alexa Vega.  The film centers around a group of unpopular best friends, whom in a desperate attempt to improve their social status, enter into an all-night scavenger hunt against the popular clique in their school. 
8.  10 Things I Hate About You

10 Things I Hate About You, while mostly remembered for it's romantic story-lines, contains one of the BEST female rivalries of all time -- a SISTER rivalry!  Bianca, the youngest sister, longs for a life of popularity & parties.  Her father doesn't allow her to date nor go to PROM unless her older sister, Kat, agrees to go to the same social events.  Bianca must finds ways to convince Kat to go out and enjoy high school. 
9.  Clueless

In this 1995 teenage classic, Cher Horowitz (Alicia Silverstone) is an extremely privileged high school student in Beverly Hills.  Faced with numerous adolescent obstacles, she is forced to endure the ups and downs of relationships, friends, family, school, and the majorly-important teenage social life.  The film also stars Paul Rudd and the late Brittany Murphy. 

10.  Holiday In The Sun

While on a family vacation in the Bahamas, twin sisters Madison & Alex (Mary-Kate & Ashley Olsen) fall head-over-heels for boys on Paradise Island.  Alex falls for a boy named Jordan, an employee at the Atlantis Hotel -- where they are staying.  Unfortunately, she's not the only one with a crush on Jordan.  Brianna Wallace (Megan Fox), a spoiled heiress is also into him and plays dirty to win him over.