Sundance Documentaries: ‘Eternal You,’ ‘Ibelin’ and More

Everyone from the academy to streaming services splits cinema into two buckets: movies (comedy, romance, horror, whatever) and documentaries, lumped into one unholy pile. Besides being obviously reductive, the division is false: Nonfiction movies can be comedies or romances or horror or any other genre, and they can create new indescribable genres, too. But American audiences still tend to be fed documentaries of only a few types: true crime stories, cult exposés, hagiographies, and educational disquisitions full of talking heads.

There’s more than that to nonfiction. And though plenty of star-driven, lightweight biographies show up at Sundance — famous folk on the carpet create much-needed social-media attention — there’s a lot of other nonfiction on offer, some of which will make its way to theaters and streaming services over the next year or two. A couple of lucky films may even eventually make their way into Oscar contention.

Documentaries at this year’s Sundance, which concluded Sunday, ranged across the genre map, often playfully mixing up conventions. But it was striking how often a particular thread kept popping up: the human longing to communicate with the dead, and the lengths — technological and otherwise — to which we’ll go to make it happen.

That was the theme of “Love Machina” and “Eternal You,” which feel picked by the programmers to complement one another. “Love Machina” (directed by Peter Sillen) is a romance looking at the efforts of the married couple Martine and Bina Rothblatt to create a robotic replica of Bina, powered by artificial intelligence and an extensive database of her thoughts, speech and emotions, that can communicate with her descendants when she is gone. “Eternal You” (directed by Hans Block and Moritz Riesewieck) takes a broader, more analytical look at the burgeoning market for “afterlife technology” designed to do what the Rothblatts hope to accomplish: let people communicate with their loved ones after death using A.I. If that sounds like a “Black Mirror” episode, you’re right — and some “Eternal You” participants note the humanity-altering danger in this quest.

Yet, as the eminent sociologist Sherry Turkle points out onscreen, what we see in these efforts is A.I. offering what religion once did: a sense of an afterlife, a quest for meaning, the feeling of connecting to transcendence. One of the festival’s best documentaries, the sociological portrait “Look Into My Eyes,” taps into this same longing from a more mystical direction. Directed by Lana Wilson, the film drops audiences into the lives of several New York City psychics. The clients are hoping to communicate with the beloved dead through a literal rather than technological medium. (One participant helps people communicate with their pets, some of whom are still living.) But the focus is on the psychics themselves, the reasons they’ve come to their work, and what they believe they’re actually doing in their sessions — and the film is marvelously nuanced and fascinating in its examination. Is this performance? Is it “real”? And if it brings peace to the living, does it matter?