The film tells the story of Metallica's internal disputes which saw Newsted quitting in 2001, and charts the course of their recovery and the making of 2003′s St Anger album.

The bassist tells The Classic Metal Show: "I do keep things pretty private � to do that like that and expose yourself in those ways, I did not agree with that. But that wasn't my decision; I was long gone by then. I think there were some pretty unsavoury moments in there.

"I worked very hard for the band. It was always my first priority. I missed some pretty important things, like laying close friends and family members to rest.