They Called Him Mostly Harmless

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1:51

They Called Him Mostly Harmless

2024

1h 29m

Documentary

Crime

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Tomatometer

Popcornmeter

63%

Tomatometer

8 Reviews

57%

Popcornmeter

100+ Ratings

When an unidentified hiker is found deceased in the Florida wilderness, authorities release a sketch. Multiple hikers call in claiming to have met the man. There's only one problem – he never told them his name. It would take two years, thousands of devoted internet sleuths, and a miracle of science to identify him, and that's when the trouble really starts. A character-centric reimagining of a classic true crime genre, THEY CALLED HIM MOSTLY HARMLESS is about finding yourself when you’re looking for someone else.

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Beatrice Loayza

New York Times

Feb 8, 2024

This artless documentary, composed primarily of interviews and B-roll footage (of walks along the trail from a first-person perspective; the amateur detectives looking at their computers, brows furrowed), mechanically pieces together the mystery.

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Nick Schager

The Daily Beast

Feb 6, 2024

Such fraught push-pull dynamics are everywhere in this HBO doc, whose mystery took years to solve and whose revelations underlined that real-world narratives don’t always conform to fiction-inspired expectations.

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John Serba

Decider

Feb 29, 2024

Gillespie is a skilled interviewer who’s capable of humanizing her subjects and capturing some of the more offbeat elements of their character.

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Alison Lanier

Pajiba

Feb 21, 2024

On the surface, judging by the streaming service thumbnail and catchy synopsis, They Called Him Mostly Harmless appears like any other sensational procedural true crime saga about discovering the truth behind a baffling mystery. But it certainly isn’t.

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Stephen Silver

The SS Ben Hecht

Feb 15, 2024

2/5

A film as unwieldy and disjointed as its title. I didn't care about the sleuths, who seemed genuinely disturbed and hostile, and wish the documentary hadn’t spent nearly as much time with them.

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Eric Langberg

Everything's Interesting

Feb 14, 2024

It all adds up to a pretty damning portrait of true crime fandom, if not the genre itself.

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Chris T

@RT85906111 Feb 1, 2026

What could have been a detective story very quickly became a 'handbags at dawn' between a couple of 'internet sleuths' who appear to think they are the story! Pretty pointless 90 minutes, that could have fit into a 20 minute short. Can't recommend it, go watch a pan boil!

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Anthony H.

@Hardy Jan 9, 2026

This case illustrates the dual nature of Internet Sleuths. On one hand, they can be invaluable in solving cases. On the other hand, if taken too far, they can severely hinder the investigation. I genuinely find it incomprehensible how Christie crafted or attempted to create this documentary about herself. It’s insane. This case also serves as a stark reminder of how someone can manipulate and build someone up in their mind.

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Austin S

@RT98461181 Mar 12, 2024

It starts off as a compelling true crime investigation. But the intrigue is quickly subverted by focusing on a couple self-important, internet-sleuthing bitter Betty's and their Facebook drama. And subsequently turns into a sort of smear campaign followed by an attempt at absolving him due to assumed mental health problems. Some really weird and unbecoming choices made to try and tell the story of a guy that we, and everyone involved, still know very little about…

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Megan E

@mcxanthus Mar 10, 2024

Starts off strong, but quickly devolves into a reality-TV-esque argument between the leaders of rival Facebook groups. And the "twist" wasn't really a twist at all.

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Taurie H

@RT50714501 Mar 5, 2024

Not enough facts— way too many assumptions and opinions from 1000 different people.

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BIG T

@BigTres Mar 3, 2024

Random murder mystery that got solved by the ppl not police. Decent watch for what it was

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Patricia E. Gillespie

Director

Patricia E. Gillespie

Executive Producer

Ethan Goldman

Producer

Danielle Franco

Producer

Amy Brown

Producer

Keayr Braxton

Producer

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They Called Him Mostly Harmless: Trailer

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Synopsis

When an unidentified hiker is found deceased in the Florida wilderness, authorities release a sketch. Multiple hikers call in claiming to have met the man. There's only one problem – he never told them his name. It would take two years, thousands of devoted internet sleuths, and a miracle of science to identify him, and that's when the trouble really starts. A character-centric reimagining of a classic true crime genre, THEY CALLED HIM MOSTLY HARMLESS is about finding yourself when you’re looking for someone else.

Director: Patricia E. Gillespie
Producer: Ethan Goldman, Danielle Franco, Amy Brown, Keayr Braxton, Nicholas Thompson
Distributor: Max
Production Co: Investigation Discovery, Anchor Entertainment
Genre: Documentary, Crime
Original Language: English
Release Date (Streaming): Feb 8, 2024
Runtime: 1h 29m

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