I have never seen so many stupid people congregate in a single documentary before. And by stupid, I don’t mean style-challenged or drunk. I mean, these people set their brains down at some point and never picked them back up. That’s what made this movie a train wreck, the kind you rewind and watch again in disbelief.

What I learned from this movie: It takes brains to become a rock star. Most of the bands in this movie were dumb as rocks and sounded exactly like each other. Their careers went nowhere. The successful musicians were much more original and were the only people in the movie with anything insightful to say. The director, however, understanding the enduring entertainment value of stupid people behaving badly, focused on the former. It was actually pretty hilarious.

Watch this movie if:

It makes you feel good about yourself to know that there are people in the world you could crush with your brainpower. (Believe me, you are smarter than the bands in this movie.)

You like to be horrified by someone behaving badly in front of their mother. (This part is painful to watch, actually, but again, it’s a train wreck and you can’t help it.)

You like glam metal.

You hate glam metal.

You want to sit around with your friends and make fun of people.