Movies like The secret of the underground (2009)
The best movies like The secret of the underground (2009) are The Mole: Undercover in North Korea (2020), Above Majestic (2018) and My Mom Jayne (2025). If The secret of the underground hooked you with its documentary, these 20 similar films are what to watch next, and every pick says why it matches.
The secret of the underground
Quick picks
- NewestS4: The Bob Lazar Story (2026)Released 2026
The Mole: Undercover in North Korea (2020)
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.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisAbove Majestic (2018)
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.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisMy Mom Jayne (2025)
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 complex woman.
Why it matches: Recommended by TMDB viewers · both documentary
Absolute CinemaMovies like thisUnknown: Cave of Bones (2023)
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.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisBoys State (2020)
This raucous journey into the heart of democracy captures an unusual rite of passage: 1,100 teenage boys from across Texas coming together to build a representative government from the ground up.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisRoman Polanski: A Film Memoir (2012)
An interview with film director Roman Polanski conducted during his period of house arrest, discussing his life and work.
Why it matches: Recommended by TMDB viewers · both documentary
Popcorn FlickMovies like thisThe Class of ‘92 (2013)
A detailing of the rise to prominence and global sporting superstardom of six supremely talented young Manchester United football players (David Beckham, Nicky Butt, Ryan Giggs, Paul Scholes, Phil and Gary Neville). The film covers the period 1992-1999, culminating in Manchester United's European Cup triumph.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisAvatar: The Deep Dive - A Special Edition of 20/20 (2022)
An inside look at one of the most anticipated movie sequels ever with James Cameron and cast.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisS4: The Bob Lazar Story (2026)
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 spark global curiosity
Why it matches: Recommended by TMDB viewers · both documentary
Absolute CinemaMovies like thisThe Curious Birth of Benjamin Button (2009)
A documentary about the making of David Fincher's 2008 film THE CURIOUS CASE OF BENJAMIN BUTTON. Virtually every element in the evolution of the Fincher's film is documented here, from the project's attachment to numerous other directors during the 1990s, to its shoot in 2006 and 2007 in New Orleans, to its complex, CGI-intensive postproduction process.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisHalloween: 25 Years of Terror (2006)
Follow the evolution of the 'Halloween' movies over the past twenty-five years. It examines why the films are so popular and revisits many of the original locations used in the films - seeing the effects on the local community. For the first time, cast, crew, critics and fans join together in the ultimate 'Halloween' retrospective.
Why it matches: Recommended by TMDB viewers · both documentary
Popcorn FlickMovies like thisChadwick Boseman: A Tribute for a King (2020)
A tribute to Chadwick Boseman, celebrating his life and legacy.
Why it matches: Recommended by TMDB viewers · both documentary
Absolute CinemaMovies like thisWe Live in Public (2009)
In 1999, Internet entrepreneur Josh Harris recruits dozens of young men and women who agree to live in underground apartments for weeks at a time while their every movement is broadcast online. Soon, Harris and his girlfriend embark on their own subterranean adventure, with cameras streaming live footage of their meals, arguments, bedroom activities, and bathroom habits. This documentary explores the role of technology in our lives, as it charts the fragile nature of dot-com economy.
Why it matches: Recommended by TMDB viewers · both documentary
Popcorn FlickMovies like thisAquaman: Heroines of Atlantis (2019)
Amber Heard and Nicole Kidman discuss their characters Mera and Atlanna.
Why it matches: Recommended by TMDB viewers · both documentary
Popcorn FlickMovies like thisThe Crystal Calls - Making The Dark Crystal: Age of Resistance (2019)
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.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisBirth of the Living Dead (2013)
A behind the scenes look into George Romero's groundbreaking horror classic Night of the Living Dead.
Why it matches: Recommended by TMDB viewers · both documentary
Popcorn FlickMovies like thisThe Curse of the Dragon (1993)
A 1993 documentary film about Bruce Lee. The film includes interviews from some of his fellow students and opponents who worked alongside him in his movies.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisMemories of a Murderer: The Nilsen Tapes (2021)
Serial killer Dennis Nilsen narrates his life and horrific crimes via a series of chilling audiotapes recorded from his jail cell.
Why it matches: Recommended by TMDB viewers · both documentary
Popcorn FlickMovies like thisA Love Song for Latasha (2019)
A dreamlike conversation with the past and the present, reimagining Latasha Harlins' story by excavating intimate memories shared by those who loved her.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like thisThe Summers of It - Chapter Two: It Ends (2019)
This documentary focuses on the actors and their journey over two summers to create the remake to the original IT, by Stephen King. The documentary originally released as bonus material, bundled with IT: Chapter Two.
Why it matches: Recommended by TMDB viewers · both documentary
Worth the HypeMovies like this
Like The secret of the underground and something else?
Blend two favourites and we’ll find the films in between.
Frequently asked questions
What are the best movies like The secret of the underground?
The closest matches to The secret of the underground are The Mole: Undercover in North Korea (2020), Above Majestic (2018) and My Mom Jayne (2025). Below are 17 more, each with the reason it matches.
What should I watch after The secret of the underground?
Start with The Mole: Undercover in North Korea (2020), the closest match to The secret of the underground.
What is the newest movie like The secret of the underground?
S4: The Bob Lazar Story (2026) is the most recent release on this list.
How are movies similar to The secret of the underground chosen?
First come films that Trakt’s viewers watch alongside The secret of the underground, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.