The world's most-popular jazz musician is far from its most respected, a cultural gap that filmmaker Penny Lane ("Our Nixon," "Nuts!") explores in this dryly humorous, thought-provoking documentary. Its focus is not so much its titular subject – the celebrated (and scorned) pop instrumentalist Kenny G. – but about the fashioning of taste itself. A generous conversation with the performer is juxtaposed with a chorus of his critics, and a bounty of the G-man's soothing melodies. Love him or hate him, by the end of the movie you may be hearing his music with new ears.