In acest film se povesteste istoria Metall'ului, incepind de la classica si blues. Tot asa in acest film documentar sunt interview'uri trupelor: Angela Gossow: Arch Enemy Cologne,Germany
Tom Morello: Audioslave,Rage Against the Machine New York City
Ronnie James Dio: Rainbow,Black Sabbath,Dio Portsmouth,New Hampshire
Tony Iommi: Black Sabbath Aston,England
Alice Cooper: Alice Cooper Detroit,Michigan
George: "Corpsegrinder" Fisher Cannibal Corpse Buffalo,New York
Alex Webster: Cannibal Corpse Buffalo,New York
Ihsahn: Emperor Notodden,Norway
Samoth: Emperor Notodden,Norway
Kim McAuliffe: Girlschool London,England
Jackie Chambers: Girlschool London,England
Gaahl: Gorgoroth Espedal,Norway
Jшrn Tunsberg: Hades Almighty Norway
Bruce Dickinson: Iron Maiden Worksop,England
Mercedes Lander: Kittie London,Ontario
Morgan Lander: Kittie London,Ontario
Munky: Korn Rosedale,California
Randy Blythe: Lamb of God Virginia
Mark Morton: Lamb of God Virginia
Blasphemer: Mayhem Norway
Necrobutcher: Mayhem Norway
Vince Neil: Motley Crue Los Angeles,California
Lemmy: Motorhead Stoke-on-Trent,England
Geddy Lee: Rush Toronto, Ontario
Tom Araya: Slayer Valparaнso,Chile
Kerry King: Slayer Los Angeles,California
Joey Jordison: Slipknot Des Moines,Iowa
Corey Taylor: Slipknot,Stone Sour Des Moines,Iowa
John Kay: Steppenwolf Tilsit,East Prussia
Dee Snider:Twisted Sister Massapequa,New York
Snake: Voivod Jonquiиre,Quebec
Piggy: Voivod Jonquiиre,Quebec
Doro Pesch: Warlock/Doro Dьsseldorf,Germany
Rob Zombie: White Zombie,Rob Zombie Haverhill,Massachusetts.
