

The film discusses the traits and originators of some of metal's many subgenres, including the New Wave of British Heavy Metal, power metal, Nu metal, glam metal, thrash metal, black metal, and death metal. Dunn uses a family-tree-type flowchart to document some of the most popular metal subgenres. The film also explores various aspects of heavy metal culture.

The Decline of Western Civilization Part II: The Metal Years
6.8
Global Metal
7.3
Selena Gomez: My Mind & Me
8.5
God Bless Ozzy Osbourne
7.8
Halftime
6.9
Anvil! The Story of Anvil
7.6
Joy Division
7.6
The Velvet Underground
6.8
Janis: Little Girl Blue
7.3
The Who: The Kids Are Alright
7.3
American Hardcore
6.8
Milli Vanilli
7.2