I haven't seen it myself, but have heard it's quite interesting.
FWIW, AMG gives it 3 stars and this review:
"Despite the odd title, this is a very coherent, if overly brief, portrait of Jackie McLean from the early '80s. McLean talks with his students about jazz, drugs, the difficulties of surviving in the music business, and the joys of the music itself. There is not enough playing by the great altoist, but there are glimpses of his style; trumpeter Woody Shaw has a cameo. This film increases one's understanding of his creativity and motivation; it certainly holds one's interest."