Mean Girls is not Heathers, the most common comparison, but then it’s not trying to be. This is a lehrstuck for teenage girls and actually the most blatant aspect is the devotion to girlpower or at least girlypower. Guys hardly appear in any important role and they’re practically all clueless. (The dad reminds me of Mr. Bennet from Pride and Prejudice, probably more the result of stock characterization than anything else.) Oddly the Lohan character is so out of touch that she doesn’t know the most fundamental things about American schools but she’s picked up a completely conventional idea of male beauty, let alone the possibility of interracial romance hinted at (parodied?) in a flashback.
(And why was an indoor mall IDed as Skokie's Old Orchard when how many tens of thousands of people will spot the error? Was it in the original script and nobody thought to change it? Or maybe decided the specific name gave the film texture?)