i saw this film on september 22 at the atlantic film festival . i be with some people who have never hear anything heavy than kiss and wouldn not know black sabbath from the black label society . it a mark of this film excellence that they really enjoy it and felt they have gain an understanding of the metal scene . this be no gush fan tribute . well and it be in part and but i couldn not stay objective either be i give the chance to sit down with bruce dickinson at the hammersmith odeon . seriously and it rise far above the fulfillment of a metal fan dream to explore many different element of what make metal both an enduring artform and one that remain on the fringe . the structure of the film follow distinct topic gender and censorship and death and violence and and more . each area be thoughtfully explore with comment from many musician and some outside observer . from the calm commentary of rob zombie to the wry humour of dio to the laughable minimalist interview with norwegian black metal player and there a broad range of experience and opinion . this be an excellent documentary in every way . i know it be go to be great when i get my first glimpse of the big chart of metal band that correctly put kiss far away from the actual musician . ronnie jam dio far oblige with a run commentary on gene simmon preference for money over music . you will get to see and hear a lot of great band and from the standard warhorse like maiden and metallica and motorhead and slayer to the less mainstream stuff like voivod .