These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Glurge: This movie is probably 100% glurge content by weight. Pay attention to your kids or they'll turn into murderous deviants.
Informed Wrongness: The parents are touted as being neglectful of Paula, but their behavior on screen seems to belie Paula (and the writer's) claims of them.
While the mother is fairly aloof, she does give Paula blank checks, and free use of her car, without qualifications. She is claimed to never be interested in Paula, but she actually does show concern for Paula's desires, and has a long conversation with her.
Similarly, her father is portrayed as being married to his job and never being home for Paula. Yet, her father did give her gifts, and even more importantly, is supportive and knowledgeable of Paula's school and civic activities. To take that even further, he's actively proud of her.
Moral Event Horizon: The movie tries to paint the trashing of the classroom as this. Many viewer see the male rape scene as this, even though the girls started the movie by knocking a gas station attendant into a coma.
The gang casually raping a victim after robbing him, completely on a whim. It helps that the movie doesn't pull any of the Double Standard tropes and plays it straight as sexual assault under the threat of murder.
She Really Can Act: Playboy centerfold Jean Moorhead does pretty well in her first (and last) major role.