METALLICA frontman JAMES HETFIELD has credited the band's documentary with saving him from an alcoholic hell.
Filming SOME KIND OF MONSTER made the now-sober singer see how his lifestyle was destroying himself and hurting those around him.
Hetfield says, "(The film) took the black veil away, it took the mystique and the mystery out of the rock myth of sex, drugs and rock 'n' roll.
"Music is the best drug in the whole f**king world and moves me like no other. I thank God that I discovered that gift early on."