There is a scene in the first book where Bridget attends a party. There, Bridget's coworker Perpetua and her friends disdainfully discuss Adaptation Displacement and adaptations of "classic" novels into films and TV shows. This becomes amusing when you consider that the book is essentially a Setting Update of Pride and Prejudice.
It's obvious in the second film that Bridget feels inferior to Rebecca. Especially with these perfect shots of Rebecca and of her looking camera ready with pink cheeks and shiny hair with a beaming smile, all seem a bit excessive. Then you remember that Rebecca has a crush on Bridget: Becky is looking the way most girls would want to look in front of their crushes.