I don't think I've ever turned a movie off 15 minutes from the ending not due to the scene I was watching but because my tolerance for the film as a whole had been utterly worn away. Misery Porn Meets Twee Indie has got to be the most repellent combination of genre aesthetics I've ever had the misfortune of experiencing.
Makes you wonder how something so unquestionably repulsive can actually be so good. If you are put off by Hesher's rude and distasteful character, hang in there, that's actually what makes this story work. Joseph Gordon-Levitt easily takes the credit for his absolutely wrecking performance as the cold-blooded anarchist, alongside the young actor, Devin Brochu. It's a weirdly fascinating story.
All the characters are like blank figurants with automatic dialogues while Hesher is a hiperbolized version of a metalhead or a regular Joe's combined prejudices about what a metalhead is, a caricature to entertain the non-initiated. If you lose one nut...you still got one left. P.S. Metallica sucks even the single ball left. Put some Violator, Adrenicide, Dr. Livingdead instead.