“Teen Spirit” is a smaller, somewhat tattered version of films we’ve seen many times before: A guilty pleasure featuring a plucky protagonist from the provinces who escapes her stifling circumstances through talent, determination and luck.Like Cinderella, Little Red Riding Hood and Dorothy of Oz before her, Violet Valenski (Elle Fanning) finds the outside world filled with unreliable mentors, big bad wolves and charming yet insincere princes.You’re gonna have to fight, girl.Like the hopeful …