This admiring documentary about the legendary jazz vocalist and lyricist Jon Hendricks avoids the standard career arc of most musical biographies to focus instead on a little-known episode in the singer’s life: his military service during World War II in a segregated unit whose African-American soldiers were derided and endangered by the white troops they supported. Director Malte Rauch shows how the black soldiers outsmarted their detractors to win the affection of French locals and includes a warm reunion between Hendricks and a Frenchman who remembers his kindness. A meeting with three surviving Tuskegee Airmen is a bit stiff—perhaps these certified war heroes knew Hendricks had done time for going AWOL—but the musician is debonair onstage and off. In English and subtitled French.