Telluride keeps a slot open every year for a film nobody knows about until the lights go down. This year it was Nathan Fielder's Elizabeth Holmes documentary, the one people had been whispering about for ages without ever getting confirmation it existed.

It exists. It's called You Can See Everything, and it premiered Sunday night to what The Hollywood Reporter described as the festival's longest lines so far, with attendees made to check their phones in at the door. That alone tells you A24 wanted this one kept quiet until it couldn't be anymore.

The official logline, per A24 and reported by both Variety and THR, sets the scene precisely: thirty-four days before Holmes is sent to prison, she lets a skeptical film crew document her every move, and what starts as an intimate portrait of a convicted felon turns into what the studio calls a mind-bending three-year journey. THR notes the shoot itself happened in April and May of 2023, after Holmes's January 2022 conviction on multiple counts of investor fraud and wire fraud connected to Theranos, the blood-testing startup she once ran as the youngest self-made female billionaire in the country.

The teaser that dropped alongside the screening plays like an interrogation nobody agreed was an interrogation. Holmes tells Fielder, "I don't have anything to deceive you on. Of course I'm not deceiving you. I'm engaging with you as a human being. Why would I deceive you? There's no reason for me to do that." Fielder's reply is somehow the most Fielder thing imaginable: "OK. Alright. OK, good chat. You're being real right now?"

What happened in the room after the credits rolled is where this gets interesting. THR rounded up a wall of festivalgoer reactions ranging from "shocking" and "brilliant" to a flat "what the f*** did I just watch?" Multiple critics called it among the best things they'd seen all year, several said the less you know going in the better, and one described it turning from an uneasy documentary into something structurally unrecognisable from where it began. Fielder himself, at the post-screening Q&A, reportedly admitted he's "struggling to this day to understand exactly what I experienced."

Fielder built his name on Nathan For You and HBO's The Rehearsal, shows built on the discomfort of not knowing where the performance ends. Oppenheim comes at it from the other side, as a documentarian behind Some Kind of Heaven and Ren Faire, and his first narrative feature, the Robert Pattinson-led Primetime, just drew raves out of Venice this same weekend. Putting the two of them on the same subject was always going to produce something strange.

A24 hasn't fixed a release date beyond October. Given the reception out of Telluride, expect that to firm up fast, and expect the studio to lean hard into the mystery rather than spoil it. Whether Holmes, currently serving her sentence, has any reaction of her own is the thing nobody's answered yet.