Martha

With the great American filmmaker R.J. Cutler (“The War Room,” “Billie Eilish: The World’s a Little Blurry”) delivering a briskly paced but thorough film that ticks off the many amazing chapters in Stewart’s life, “Martha” is one of the best documentaries of the year.

As the warts and all image emerges, with her surgically-polished profile never breaking a sweat, we still can’t help but get a kick out of her Bieber-Snoop fed revival. Because as much as her comeuppance seemed destined, that “comeback” makes her story as American as they come.

If nothing else, audience members will walk away from Martha with a far greater understanding of Stewart — of all the “good things,” in her parlance, and plenty of the bad — and equal admiration and unease of what that all adds up to.

Cutler’s onscreen interactions with Stewart, as well as occasional forays into the way she treats the people around her, turn the picture into something a lot slippier and the subject into someone more captivating.

Time and again, Stewart clams up or shuts down when she’d prodded on sensitive subjects; you get the feeling she’s humoring her filmographer with only slightly more restraint than she might show to a kitchen helper who uses the wrong knife to cut an orange.

Martha is, after all, the star – a fascinating narrator of her own life, sometimes direct, sometimes curiously opaque or self-contradictory, always evincing a glowing, undaunted ambition. As the OG influencer, she lived the rule: whatever happens, just keep pushing forward. The people will keep watching.

Stewart’s impact is evident within the first hour of “Martha.” That’s a good thing, because the younger audience this film might be targeting lacks the patience for another hour of Cutler’s photo parade, no matter how extraordinary his subject.