Agree. There are a few interesting interviews (Dorothy and ?? (ex-wives), Clark Terry, Gus Johnson (I think it was)). The material gets stretched waaaaay too far. The same soundie clips play many times. The only new-to-me film is with BG's band. And the same still photos are filmed over and over, mainly to fill time(?)
I saw the film in Boston when the director premiered it. There are a few interesting interviews, but overall the film is a mess. The interview with Gus Johnson (already deeply afflicted with Alzheimer's) is embarassing. The inept "artsiness" is laughable. In his talk after the film, Revett admitted that getting clearance rights for the music was way too expensive, so he stretched what he had.