Movies Like Aliens Uncovered: Portal Encounters 2

If you liked Aliens Uncovered: Portal Encounters 2 (2025), a documentary movie directed by Clive Christopher, 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
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.
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
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.
5
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.
6
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.
7
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.
8
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.
9
Under the Helmet: The Legacy of Boba Fett (2021)
★ 6.9/10Also documentary
A special celebrating the origins and legacy of Star Wars' legendary bounty hunter, Boba Fett.
10
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…
11
An Inconvenient Truth (2006)
★ 6.9/10Also documentary
A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.
12
Star Wars Biomes (2021)
★ 6.4/10Also documentary
Take a virtual vacation to some of the Star Wars films' most iconic and beloved locations like Hoth, Tatooine, and Sorgan, as this charming series whisks you off for fly-through tours of the Galaxy Far, Far Away.
13
An Inconvenient Sequel: Truth to Power (2017)
★ 6.6/10Also documentary
A decade after An Inconvenient Truth brought climate change into the heart of popular culture comes the riveting and rousing follow-up that shows just how close we are to a real energy revolution. Vice President Al…
14
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…
15
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.
16
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.
17
My Octopus Teacher (2020)
★ 7.9/10Also documentary
After years of swimming every day in the freezing ocean at the tip of Africa, Craig Foster meets an unlikely teacher: a young octopus who displays remarkable curiosity. Visiting her den and tracking her movements for…
18
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.
19
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.
20
Beyond Infinity: Buzz and the Journey to Lightyear (2022)
★ 7/10Also documentary
Explore the evolution of Buzz Lightyear from toy to human in the making of Pixar’s Lightyear. Dive into the origin and cultural impact of everyone’s favorite Space Ranger, the art of designing a new “human Buzz,” and…