Movies Like Searching for Planet 9

If you liked Searching for Planet 9 (2022), a documentary movie directed by Florence Tran, 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
Unknown: Cosmic Time Machine (2023)
★ 7.4/10Also documentary
The James Webb Telescope stirs imaginations with vivid photos of distant galaxies. This documentary tracks its historic journey from inception to launch.
2
The Age of Disclosure (2025)
★ 7.5/10Also documentary
Director Dan Farah got 34 senior members of the U.S. Government, military, and intelligence community to come on camera. He says they reveal an 80 year cover-up of the existence of non-human intelligent life and a…
3
Ghost Elephants (2026)
★ 7.6/10Also documentary
In Angola's mist-shrouded highlands, three KhoiSan master trackers embark on a spiritual quest to rediscover the legendary "ghost elephants" of Lisima, creatures presumed lost but remembered in ancestral trance…
4
21 Up (1977)
★ 7.4/10Also documentary
After another 7 year wait, director Michael Apted revisits the same group of British-born children from Seven Up! and 7 Plus Seven. The subjects are interviewed as to the changes that have occurred in their lives…
5
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…
6
Fireball: Visitors from Darker Worlds (2020)
★ 6.5/10Also documentary
This remarkable journey across our planet and universe explores how meteorites, shooting stars, and deep impacts have awoken our wonder about other realms—and make us rethink our destinies.
7
American Teen (2008)
★ 6.4/10Also documentary
A documentary on seniors at a high school in a small Indiana town and their various cliques.
8
The Bus: A French Football Mutiny (2026)
★ 6.9/10Also documentary
This documentary revisits the French football team's controversial 2010 World Cup and the bus strike that sparked global headlines and national outrage.
9
Selena Gomez: My Mind & Me (2022)
★ 8.4/10Also documentary
After years in the limelight, Selena Gomez achieves unimaginable stardom. But just as she reaches a new peak, an unexpected turn pulls her into darkness. This uniquely raw and intimate documentary spans her six-year…
10
Directed by John Ford (1971)
★ 7/10Also documentary
A documentary about the life and films of director John Ford.
11
Oasis: Don't Look Back in Anger (2026)
★ 6.9/10Also documentary
Experience the meteoric rise of Oasis through rare footage and untold stories as the band reunites for Oasis Live '25, chronicling their journey from Manchester streets to global rock stardom.
12
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.
13
28 Up (1985)
★ 7.5/10Also documentary
Just two years away from turning 30, participants in Michael Apted's documentary series are facing serious questions of identity and purpose, wondering whether they've found their place in the world.
14
Obi-Wan Kenobi: A Jedi's Return (2022)
★ 6.8/10Also documentary
This special explores the return of Obi-Wan Kenobi and Anakin Skywalker to the screen, as well as Ewan McGregor and Hayden Christensen to their classic roles. Director Deborah Chow leads the cast and crew as they…
15
Behind the Planet of the Apes (1998)
★ 7.1/10Also documentary
Roddy McDowall takes you, film by film, from production meetings to make-up sessions, then right onto the movie set to see the actual filming of the science fiction masterpiece. The most comprehensive history of Planet…
16
Unknown Number: The High School Catfish (2025)
★ 6.7/10Also documentary
Vulgar, taunting texts blow up the phones of a teen and her boyfriend. Who's sending them — and why? This twisty documentary reveals the shocking answer.
17
Planet Ocean (2012)
★ 7.5/10Also documentary
Dive into our planet's greatest mysteries with a team of international underwater cinematographers as they explore the breathtaking bond between humanity and the ocean.
18
Good Night Oppy (2022)
★ 7.7/10Also documentary
The inspirational true story of Opportunity, a rover that was sent to Mars for a 90-day mission but ended up surviving for 15 years. Follow Opportunity’s groundbreaking journey on Mars and the remarkable bond forged…
19
Daguerréotypes (1978)
★ 7.3/10Also documentary
An intimate portrait of the small shops and shopkeepers of the Rue Daguerre in Paris, a picturesque street that has been the filmmaker’s home for more than 50 years.
20
Explorer: The Last Tepui (2022)
★ 7.5/10Also documentary
This documentary starring climber Alex Honnold and famous biologist Bruce Means document their expedition to the South American sky islands in search of new species and discoveries. Follows elite climber Alex Honnold…