well what can i say about this masterpiece of a documentary . first represent it a film make by a real metal head and who have a big knowledge about the best kind of music in the world . although he be a die hard metalfan and he try to be objective and just to document the heavy metal universe and it origin . this with success . second represent he interview many important pioneer and member of the scene and like slayer and enslave and ronnie james dio and lemmy from motörhead . etc . but i think in flame and metallica would have be necessary and too . third represent xxxxxxx awesome and sam dunn and you rule . greeting from a die hard metalhead from metal nation germany . philipp .