Mazzo was absolutely on my wish list. I’d have like to have heard more from people who’ve been/had been interviewed less frequently, or haven’t/hadn’t written their own books. For example, I remember Richard Tanner had interesting things to say in “I Remember Balanchine.” Helgi Tomasson. Robert Weiss. And, yes, I’ll say it, Peter Martins, who had great things to say in the PBS documentary on Jerome Robbins with regard to the difference between working with Robbins and Balanchine. Kyra Nichols instead of Watts. Maybe even soloists who were in the company a long time without making it to principal, since this is about class, not the making of ballets. But I’ll reserve judgment till I see the movie, which I’m definitely looking forward to doing.