Filmmaker Lu Leslan will introduce a free screening of her first documentary, TAKE A BOW &ndash; The Ingrid Clarfield Story, this Saturday (October 8, 2011) at 7&nbsp;p.m. at&nbsp;The Hearthstone&nbsp;(6720 E Green Lake Way N). The film&rsquo;s official website provides the following synopsis: &ldquo;TAKE A BOW &ndash; The Ingrid Clarfield Story&rdquo; is the extraordinary life story of a remarkable contemporary educator and inspirational figure. Ingrid is a respected Professor of Piano at Westminster Choir College at Rider University in Princeton, New Jersey. She has traveled extensively giving workshops and lectures to thousands of students and teachers from coast to coast. On...