Anvil! The Story of Anvil is in the same class as The King of Kong. It’s a documentary that tells an entertaining and touching story about a subject that most viewers probably would never care about but will once they get to know the people in it. I laughed out loud through much of it, but was equally moved as the story unfolded.
From the linked DVD Talk review:
It’s easy to describe “Anvil!” as a real world version of “This is Spinal Tap,” and the comparison is incredibly accurate… While suitably absurd and prone to spotlighting rock cliché humiliation, “Anvil” is a far more reverberating and loving film than it seems at first glance… [It presents the core members of the band] as sensitive, generous, and terrified men nervously facing the rest of their life without the proper career explosion they deserve, and that potent tension turns “Anvil!” from a cheap laugh to a documentary that’s thrillingly heartfelt and extracts a genuine reflection on life that’s downright poetic.
I didn’t think I’d be interested in it, but it’s a good movie. A good story.