I first saw this (on VHS!) upon it's release, and at the time it was the first 'behind closed doors' look at the mechanics and machinery of a band about to embark on their assault of the mainstream charts. From recording to finally touring, this is a fascinating look at the juggernaut that Metallica became, and how their most successful album (over 15 million to date) came into being. It's a pity the DVD is only available on region 1, but in my opinion, is worth getting a multi region player for! Thoroughly recommended.