There is nothing more to add to the other commentaries: all you want at this end of the almost perfect documentary is MORE MUSIC!! Indeed I could see the same technique used by Pennebaker, and the same groove as in "Woodstock", but this is the closest you'll ever get in these modern times to a recreation of the flower-power atmosphere!! Today we have no more Janis, no more Jerry, and the whole world just feels empty without them, now even more than before, thanks to this movie. JANIS just steals the show every time she appears in the film, but there are many other people with memorable lines and comments, so in the whole it's an amazing feast for the eyes and ears! GO AND SEE IT