
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.
A deep dive into the heart of heavy metal culture, this documentary feels like a passionate lecture from a superfan. It's a joyous, informative exploration of the genre's roots and its devoted community.
















