


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.

2011

2013

2009

2000

1974

2014

2011

2005

1903

2013

2013

2006

1976

1970

1986

2008

2012

1975

1997
![Poster of [REC]](https://image.tmdb.org/t/p/w342/hgyJR4sgMsee6xMFM3xYiG6cDCh.jpg)
2007