If you think #OscarsSoWhite, consider the world of elite ballet. And if you want to understand why the current conversation over the lack of diversity among this year’s film academy nominees is just one thread of a much larger tapestry, watch Nelson George’s documentary “A Ballerina’s Tale: The Incredible Rise of Misty Copeland” on PBS on Monday night. Watch too if you are a dance aficionado or a woman, if you have a daughter or for that matter a son, or just a thinking member of a culture that is changing, with various degrees of resistance, in almost every area. It won’t take long, just 90 minutes that include several exquisite dance scenes, Copeland’s now-signature friendly frankness and none of the crazy-girl “Black Swan” pathology we have come to expect from tales of the dance world. Those looking for a full-fledged biography of the dancer may be disappointed, but PBS’ airing of the documentary could not come at a better time.Read more on NewsOK.com