The rather dusty black-and-white footage, dating from the summer of 1966, opens with bikinis, beach umbrellas and Foster Grant-shaded sophisticates strolling La Croisette. The scene then shifts to a surprisingly drab hotel suite, where Duke Ellington explains that, though his career had taken him to all corners of the globe, this is his first visit to the French Riviera. Ellington is there, with Ella Fitzgerald, for the Festival International de Jazz at Juan-les-Pins, but, as he enthuses in his...