Mean Girls (2004)
I remember watching and enjoying Mean Girls when it first came out. All my friends laughed at me, calling it a chick flick... That was, until they watched it and enjoyed it too!
A 16-year-old home-schooler (Lindsay Lohan) begins going to public school and falls into the cool crowd, the "Plastics." Every thing is great until she falls for the ex-boyfriend of Plastics leader, Regina (Rachel McAdams).
This movie is absolutely hilarious. If you haven't watched because you've been thinking it's "for girls" or whatever other reason, just watch it. You won't regret the time spent.