With his beard, his burliness, his ready smile and his clear, steady, British-accented voice, the physician and writer Oliver Sacks was perhaps the Platonic ideal of the avuncular white male genius. But as comfortable and comforting a figure as he became, Sacks, who died in 2015 at age 82, of cancer, was for a long time a traumatized, troubled man.
The neurologist and author recounts anguish, alienation and drug addiction in the book “On The Move,” which this documentary, directed by Ric Burns, shows Sacks seeing to publication in the months before his death.
A deftly edited mix of archival footage, still imagery, talking-head interviews and in-the-moment narrative, “His Own Life” — which in a perfect world would be a companion piece to Sacks’s book, not the substitute some might make it — illuminates details of what can only be called an extraordinary existence.

