Another I love is
Romy and Michelle's High School Reunion, with Mira Sorvino and Lisa Kudrow. Mostly just the friendship between the two girls, and the underdog sympathy you have for them, amid the vicious cliques they endured in high school, that they're reluctant to experience again by attending their 10th high school reunion. Both the best and worst scenarios possible occur, which I found really interesting.
Over the years after high school running into classmates, I came to realize I was a lot more popular than I felt back when I was in school. And I think most of us experience that, and that feeling in virtually everyone was vicariously well explored through characters of various cliques in the movie.
