It is about a group of bullying, boozing girls that disrupt the lives of many at school. They are just plain mean because they can, and do what they want with no consequences until one teacher stands up to them. They set out to make her life Hell, but in the end, everything comes to the light and the girls are all put on front street in the press.
Check Lifetime movie listings. The movie was called Fab Five: The Texas Cheerleader Scandal.
Good movie and true too. You should check it out.