Matt Nie directed this Tribeca Film Festival Best Documentary on Vancouver kite flier, Ray Bethell (March 1, 1928 - December 18, 2018).
Wikipedia - "Ray Bethell was a professional kite flyer who resided in Vancouver, British Columbia, Canada. He holds multiple endurance world records related to simultaneously flying three stunt kites, one from each hand and one from his hips. Using the same technique he can fly multiple stacks of kites."
Ray was a real treasure to many - especially in the Kite world. Check out Ray's website: http://www.raybethell.com/html/n_01.htm