The four part documentary focuses on the origins, subgenres, and the bands of heavy metal music, paying close attention to influential bands like Black Sabbath, Led Zeppelin, Judas Priest, and Iron Maiden, who helped to define hea...
Directed byMichael John Warren
Written byTom Coppola, Eliza Kurtz, Matt Maranz
CountryUnited States
Runtime60 min
On screen
Rick Allen
Sebastian Bach
Gavin Baddeley