Even the title of this documentary is an indication of the poor faith that the filmmakers had in their subject. Mick Ronson was so much more than David Bowie's guitarist - though in his humility, Ronson reduced himself to such in an interview from this messy film.
Ronson was one of the greatest rock guitarists who ever lived, yes, but he was also an iconic arranger, producer, and even occasional songwriter. Another reviewer pointed out that this film attacks David Bowie and centers on him far too much, and I have to agree. Ronson made three solo albums in his own right in addition to many other musical achievements. Five of his singles were released in his lifetime, and he worked with other artists that I would've loved to have heard more from in this film. I wanted to know so much more about Ronson's guitar technique, creative processes, inspirations; instead, I heard the same people talk over and over about how David Bowie still would've been famous without him - but Ronson's contributions certainly helped, somehow? There were so many parts of this film that I'm glad Ronson didn't see. This was downright offensive.
That said, I still learned about the artist because a movie about Mick Ronson has to include at least something of Mick Ronson. I would not recommend it in the slightest, though, even for that. I'd advise that anyone with even a fleeting interest in glam rock look up some interviews with the massive talent that garnered the respect of Lou Reed, Mott the Hoople, Bob Dylan, Morrissey, and Elton John. Mick Ronson changed rock music as we know it, and things were never the same.