Movies Like Alien Colony Earth: Human Harvest

If you liked Alien Colony Earth: Human Harvest (2021), a documentary movie directed by Rick Wallen, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Above Majestic (2018)
★ 7.4/10Also documentary
A look at the origins, history and conspiracies behind the "Majestic 12", a clandestine group of military and corporate figureheads charged with reverse-engineering extraterrestrial technology.
2
A Toxic Love Story (2026)
★ 6.4/10Also documentary
A string of threatening emails escalates into a revenge plot involving a newly married US marshal and his ex-girlfriend.
3
The Secret (2006)
★ 6.6/10Also documentary
Interviews with leading authors, philosophers and scientists, with an in-depth discussion of the Law of Attraction. The audience is shown how they can learn and use 'The Secret' in their everyday lives.
4
Avatar: The Deep Dive - A Special Edition of 20/20 (2022)
★ 7.2/10Also documentary
An inside look at one of the most anticipated movie sequels ever with James Cameron and cast.
5
S4: The Bob Lazar Story (2026)
★ 8.4/10Also documentary
Over 35 years after Bob Lazar's revelations, this documentary exposes secrets of a facility the government still denies. Featuring Lazar's testimony, recreations, and new evidence, it reopens a case that continues to…
6
Seaspiracy (2021)
★ 7.8/10Also documentary
Passionate about ocean life, a filmmaker sets out to document the harm that humans do to marine species — and uncovers an alarming global conspiracy.
7
Behind the Curve (2018)
★ 6.3/10Also documentary
Meet the growing, worldwide community of theorists who defend the belief that the Earth is flat while living in a society who vehemently rejects it.
8
Bob Lazar: Area 51 and Flying Saucers (2018)
★ 6.2/10Also documentary
Area 51, flying saucers from another world - and the program to create a fierce technology. Bob Lazar remains the singular most famous and controversial name in the world of UFOs. The reason you know about Area 51 is…
9
The Captains (2011)
★ 6.4/10Also documentary
The Captains is a feature-length documentary film written and directed by William Shatner. The film follows Shatner as he interviews the other actors who have portrayed starship captains in the Star Trek franchise.
10
Orgasm Inc: The Story of OneTaste (2022)
★ 6.1/10Also documentary
A sexual wellness company gains fame and followers, then members come forward with shocking allegations.
11
Voyeur (2017)
★ 5.9/10Also documentary
Legendary journalist Gay Talese unmasks a motel owner who spied on his guests for decades. But his bombshell story soon becomes a scandal of its own.
12
Room 237 (2012)
★ 6.1/10Also documentary
A subjective documentary that explores various theories about hidden meanings in Stanley Kubrick's classic film The Shining. Five very different points of view are illuminated through voice over, film clips, animation…
13
In the Realms of the Unreal (2004)
★ 7.2/10Also documentary
In the Realms of the Unreal is a documentary about the reclusive Chicago-based artist Henry Darger. Henry Darger was so reclusive that when he died his neighbors were surprised to find a 15,145-page manuscript along…
14
Sherman's March (1986)
★ 6.3/10Also documentary
Documentarian Ross McElwee originally set out to make a travelogue of sorts tracing General William T. Sherman's infamous scorched-earth march through the Confederacy in the latter stages of the Civil War. Instead…
15
Bitter Lake (2015)
★ 7.6/10Also documentary
An experimental documentary that explores Saudi Arabia's relationship with the U.S. and the role this has played in the war in Afghanistan.
16
The Age of Stupid (2009)
★ 6.6/10Also documentary
Pete Postlethwaite stars as a man living alone in the devastated future world of 2055, looking at old footage from 2008 and asking: why didn’t we stop climate change when we had the chance?
17
Elstree 1976 (2015)
★ 6.2/10Also documentary
A documentary about ten very different lives connected by having appeared onscreen wearing masks or helmets in Star Wars.
18
Come See Me in the Good Light (2025)
★ 7.1/10Also documentary
In an intimate and joyful story of love in the face of loss, celebrated poets Andrea Gibson and Megan Falley find strength—and unexpected hilarity—in what might be their final year together.
19
180° South (2010)
★ 7.2/10Also documentary
The film follows adventurer Jeff Johnson as he retraces the epic 1968 journey of his heroes Yvon Chouinard and Doug Tompkins to Patagonia.
20
McQueen (2018)
★ 7.4/10Also documentary
Alexander McQueen's rags-to-riches story is a modern-day fairy tale, laced with the gothic. Mirroring the savage beauty, boldness and vivacity of his design, this documentary is an intimate revelation of McQueen's own…