A very special movie, about two jazz musicians with Tourette’s syndrome getting acquainted in Greenwich Village. One’s a white 12-year-old pianist (Christopher George Marquette); the other’s a black tenor saxophone player (Gregory Hines). Polly Draper (Thirtysomething), who does a beautiful job of playing the boy’s mother, wrote the sensitive script, which falters only when it reaches for an overly hasty resolution. She’s the wife of jazz pianist Michael Wolff, who’s in charge of the music here and has a mild case of Tourette’s, so she has a particular reason to be thinking about some of the fascinating questions posed hereabout willful and involuntary improvisation and how they might live together. The moments when the story and music become one are sublime, and more generally this is a very sweet and touching story about various West Village people. The jazz milieu is caught with flavor and feeling. With Desmond Robertson, Bill Nunn, and Tony Shalhoub. 91 min. (JR)