The movie, directed by Jonas Ã…kerlund, is basically about the relationship between Metallica and their fans. While the movie does cover the early days of the band, it’s not a movie about their career as a whole. The background information about their beginnings really serves as more of a foundation to show how they built a following— from fan #1, all the way to the present-day generation of 12-year-olds. It's filled with emotion and joy, and if you're a superfan of any band, you'll be able to relate.