While trawling You Tube, I fell on trailer for a film on the life of Art Pepper.
The clip from a feature work in progress is based on the book Straight Life, the Story of Art Pepper. The footage of Art in performance is from Don McGlynn's documentary called Art Pepper: Notes from a Jazz Survivor.
I read Art's Straight Life back in the 80's at virtually one sitting - it is that engrossing. Art created beautiful music while living a hard life!