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
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6.8/10

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7.3/10

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8.5/10

The Velvet Underground
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6.8/10

Halftime
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6.9/10

Anvil! The Story of Anvil
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7.6/10

God Bless Ozzy Osbourne
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7.8/10

American Hardcore
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6.8/10

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2014
7.0/10

Gimme Shelter
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7.3/10

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7.0/10

Beastie Boys Story
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7.5/10

The Greatest Night in Pop
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7.9/10

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7.3/10

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7.1/10

The Last Waltz
1978
7.6/10

Supersonic
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7.4/10

Music by John Williams
2024
8.1/10

Thriller 40
2023
8.5/10

Something from Nothing: The Art of Rap
2012
6.7/10
Cypress Hill: Insane in the Brain
2022
6.7/10