Oscar-winning director Davis Guggenheim brings a unique editing style and crucial timeliness to “Still: A Michael J. Fox Movie,” streaming May 12 on Apple TV+. The director of “An Inconvenient Truth” and “Waiting for Superman” profiles the beloved actor’s journey with Parkinson’s disease – and most importantly, his staunch mission to eradicate the illness for families like his.

The iconic “Family Ties” and “Back to the Future” actor has told his story in a series of best-selling memoirs, becoming a successful author with the publications of his outstanding books, “Lucky Man,” “Always Looking Up,” and “No Time Like the Future.” The books encompass his journey from creating a sitcom sensation to becoming face of a foundation raising funds to support research into treating Parkinson’s disease.

As it has throughout his dynamic career, the 18-time Emmy winner’s onscreen charisma brings a new layer to the sharing of his story. And what a story it is: transforming from a high school dropout to one of the most recognizable actors of his generation. It is his Parkinson’s diagnosis at 29 that has long defined Fox’s public persona, but this unique documentary allows him to reclaim segments of that story, bringing his signature humor and outlook to the narrative.

“Still” will be especially moving for those who know nothing about Fox’s battle, providing little-seen insight into his family life. His support system, including his wife Tracy Pollan and four children, is just as heroically humorous as he is, fighting alongside him with a humility and grace that seems almost unmatched in documentaries with subject matter this heavy. Guggenheim expertly weaves little-seen clips from Fox’s career with his personal stories, providing a unique documentary-viewing experience.

Like Fox did in his entertainment career, the 61-year-old brings a signature wisdom and levity to this material, too. The only difference is his personal connection to finding a cure for Parkinson’s, and lessening the agony faced by families like his. “Still” does not shy away from the pain and challenges faced by a family – this is as much a Fox story as it is a “Michael J. Fox” story. And on behalf of every family dealing with the profound pain that comes with chronic illness, it is a welcome and necessary narrative.