It’s 1982 in Stockholm, and don’t you dare say punk is dead. Not when 13-year-old pals Klara (Mira Grosin) and Bobo (Mira Barkhammar) have decided to start a punk band. True, they don’t know what chords are, or what constitutes a harmony, but what the hell. As a “political” act, they befriend a loner Christian music nerd at their school, Hedvig (Liv LeMoyne), which also has a purely practical side effect: she can teach them how to play guitar. Swedish filmmaker Lukas Moodysson (Together) — writing with his wife, Coco Moodysson, from her graphic novel — gives us an exuberant rock ’n’ roll comedy in which three of the most memorable movie teens ever embrace their adolescent angst and give it screaming voice (I love the song they write about how pointless and boring sports are in the grand scheme of injustice in the world). There are too few movies about girls at this precarious age, when their little-girl enthusiasm too often gives way to the stifling pressures of looking pretty so boys will like them, and their unique personalities get subsumed in the perceived need to conform to a narrow ideal. Not that these three don’t worry about acquiring boyfriends — one plot diversion has them meeting up with a boy punk band for reasons beyond comparing musical notes; they just won’t change who they are along the way. Their hilariously unflagging determination and spirit, especially in the face of a lot of ridicule and just plain old sexism on their journey, is a much more appealing ideal to aspire to.