The film is very close to the book, and the presentation of the different characters and the OCD is great succeeded indeed. I wish to highlight here especially that Claire's side is shown stronger than Massie (in the book it is vice versa) and, accordingly, this "bullying" the glamor clique as represented what it is in fact.
A typical "teen Saturday Friday / evening" film - the film is nevertheless very funny. I really enjoyed it and would definitely see him again.