In the movie Mean Girls I didn't see much about gender roles at all.  It was more about how girls in high school are complete A** holes to each other.  I'v seen this movie a thousand times and gender roles never came to mind when I saw it.  Mean Girls is more about the social rank of girls and how if you are higher up you are basically worshiped even though that isn't how it works in any normal school.  This movie also shows how rumors really affect how girls act and treat each other.  When rumors are spread it can really ruin someones life but in the end it shows that if you be the bigger person then you will gain more respect then if you pretend to be all high an mighty when you actually aren't.  Gender role reminds me of how men have more power than women and are usually touch and strong.  Then girls are weak and fragile but in this movie the girls are touch and basically just have it out for each other.  Men play a very minimal role in this movie to begin with.  Other than that Mean Girls is an amazing movie!