Airing May 31st at 9:30 on WNET. Directed by Christopher (Kit) Lukas, The Choreographer is a 55-minute documentary profiling choreographer Lisa diRibere, who has danced with both Balanchine and Baryshnikov. In the excerpt below, Ms. diRibere, who has choreographed over 80 ballets, is seen in 2010 training a group...