gerald potterton heavy metal be definitely one of the best animation movie ever make . it have everything representviolence and sex and nudity and humor and intelligent story . great soundtrack by such hard rock or heavy metal group like black sabbath and nazareth and devo and blue oyster cult and journey and sammy hagar and trust and grand funk railroad etc . my favourite segment from heavy metal be b 17 this one be dark and bloody and creepy . my high recommendation .