I'm guessing every person who has seen any portion of Anvil! The Story of Anvil has already drawn some sort of comparison to This is Spinal Tap, but I can't see any other way to describe this trailer other than "Spinal Tap but real, and therefore uncomfortably tragic." Now watch this trailer:
Two of the guys were even childhood friends, like Nigel and David in Spinal Tap. Can Anvil not sue, lawyers?