the complex and fascinating world behind the surface.     Pre Black Metal Bands: Black Sabbath, Venom, Black Widow, Sabbat. Black Metal Bands: Immortal, Mayhem, Satyricon , Tsjuder, Burzum, Dimmu Borgir, Dark Funeral, Mortiis, Gorgoroth and others. more info about the documentary: http://en.wikipedia.org/wiki/Black_Metal_History more background infos about Black Metal here: http://en.wikipedia.org/wiki/Black_Widow_%28band%29