Movies Like Alien Portals: Strange Artifacts, Devices and Technology

If you liked Alien Portals: Strange Artifacts, Devices and Technology (2023), a documentary movie directed by O.H. Krill, 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
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.
3
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.
4
The Mole: Undercover in North Korea (2020)
★ 7.1/10Also documentary
A real-life undercover thriller about two ordinary men who embark on an outrageously dangerous ten-year mission to penetrate the world's most secretive and brutal dictatorship: North Korea.
5
The AI Doc: Or How I Became an Apocaloptimist (2026)
★ 6.9/10Also documentary
A father-to-be tries to figure out what is happening with all this AI insanity, and explores the most powerful technology humanity has ever created... and what's at stake if we get it wrong.
6
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.
7
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.
8
Looking for Richard (1996)
★ 6.8/10Also documentary
Al Pacino's deeply-felt rumination on Shakespeare's significance and relevance to the modern world through interviews and an in-depth analysis of "Richard III."
9
My Mom Jayne (2025)
★ 8/10Also documentary
Through deeply personal interviews with her siblings and an examination of the photographs, letters, and belongings left behind, Mariska assembles a new portrait of her mother Jayne Mansfield, an extraordinary and…
10
Earth: One Amazing Day (2017)
★ 7.7/10Also documentary
An astonishing journey revealing the awesome power of the natural world. Over the course of one single day, we track the sun from the highest mountains to the remotest islands to exotic jungles.
11
Unknown: Cave of Bones (2023)
★ 7.1/10Also documentary
Scientists examine underground clues from over 250,000 years ago that raise questions about our early relatives — and what it truly means to be human.
12
Atlantis Rising (2017)
★ 6.4/10Also documentary
James Cameron and Simcha Jacobovici go on an adventure to find the lost city of Atlantis by using Greek philosopher Plato as a virtual treasure map.
13
What We Left Behind: Looking Back at Star Trek: Deep Space Nine (2018)
★ 7.1/10Also documentary
A documentary exploring the legacy of Star Trek: Deep Space Nine, the reasons it went from the black sheep of Star Trek to a beloved mainstay of the franchise, and a brainstorm with the original writers on what a…
14
Ex Libris: The New York Public Library (2017)
★ 6.4/10Also documentary
A documentary about how a dominant cultural and demographic institution both sustains their traditional activities and adapts to the digital revolution.
15
The Crystal Calls - Making The Dark Crystal: Age of Resistance (2019)
★ 7.5/10Also documentary
Go behind the scenes with stars, puppeteers and creators as they bring Jim Henson's magical world of Thra back to life in a sweeping fantasy series.
16
Heart of a Dog (2015)
★ 6.5/10Also documentary
Musician and performance artist Laurie Anderson reflects on the deaths of her husband Lou Reed, her mother and her beloved dog.
17
Capital in the Twenty-First Century (2019)
★ 6.5/10Also documentary
Film adaptation of French economist Thomas Piketty's ground-breaking global bestseller of the same name: an eye-opening journey through wealth and power.
18
Embrace the Panda: Making Turning Red (2022)
★ 6.8/10Also documentary
A feature length documentary about the all-women team at the helm of Pixar's original feature, Turning Red. With unprecedented behind-the-scenes access to Director Domee Shi and her core leadership crew, this story…
19
Vampir Cuadecuc (1972)
★ 6.1/10Also documentary
An atmospheric essay, which is an alternative version of Count Dracula, a film directed by Jess Franco in 1970; a ghostly narration between fiction and reality.
20
I Am Heath Ledger (2017)
★ 7.4/10Also documentary
The life and career of an actor, artist, and icon. His own journey through his own camera.