Thomas Chapin’s undeniable talent could have been enough inspiration for an Emmy-Award winning documentarian to make a movie. Stephanie Castillo who has just put the finishing touches on Night Bird Song: The Incandescent Life of Thomas Chapin has another pretty important reason. She’s his sister in-law. “It think the film is going to add to his legacy. It is not his legacy, his music is. And the people who love his music, listen to his music, that’s the wind upon which he will continue to be