Movies like The Secret of the Third Planet (1981)
The best movies like The Secret of the Third Planet (1981) are Titan A.E. (2000), Planet 51 (2009) and LEGO Star Wars: The Mandalorian (2026). If The Secret of the Third Planet hooked you with its animation and science fiction, these 30 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedRegular Show: The Movie (2015)7.9/10 from 455 votes
- NewestLEGO Star Wars: The Mandalorian (2026)Released 2026
Titan A.E. (2000)
A young man finds out that he holds the key to restoring hope and ensuring survival for the human race, while an alien species called the Drej are bent on mankind's destruction.
Why it matches: Recommended by TMDB viewers · both animation & science fiction
Popcorn FlickMovies like thisPlanet 51 (2009)
When Earth astronaut Capt. Chuck Baker arrives on Planet 51 -- a world reminiscent of American suburbia circa 1950 -- he tries to avoid capture, recover his spaceship and make it home safely, all with the help of an empathetic little green being.
Why it matches: Recommended by TMDB viewers · both animation & family
SnoozefestMovies like thisLEGO Star Wars: The Mandalorian (2026)
The Mandalorian and Grogu join their misfit allies for an epic party, celebrating their heroism. As friends regale the crowd with tales of their adventures, a pirate threat looms.
Why it matches: Recommended by TMDB viewers · both animation & science fiction
Popcorn FlickMovies like thisBen 10 vs. the Universe: The Movie (2020)
A blast from Ben's past returns to do double the damage on Team Tennyson and planet Earth itself, forcing Ben to go interstellar to save the day. Based on the 2016 reboot.
Why it matches: Recommended by TMDB viewers · both animation & adventure
Worth the HypeMovies like thisRobotech: The Shadow Chronicles (2006)
In the year 2044 AD, the human race has amped-up its space exploration and reached out to the stars through the miracle of ROBOTECHNOLOGY, but not without bringing intergalactic war upon the Earth itself. Heroes will die and allegiances will shift. But in the midst of combat, perhaps peace will spring up through the charred remains of battered history. One of the greatest science fiction sagas of all time continues...
Why it matches: Recommended by TMDB viewers · both adventure & animation
Popcorn FlickMovies like thisRegular Show: The Movie (2015)
After a high school lab experiment goes horribly wrong, Mordecai and Rigby must go back in time to battle an evil volleyball coach in order to save the universe — and their friendship.
Why it matches: Recommended by TMDB viewers · both animation & science fiction
Absolute CinemaMovies like thisBabylon 5: The Road Home (2023)
Travel across the galaxy with John Sheridan as he unexpectedly finds himself transported through multiple timelines and alternate realities in a quest to find his way back home. Along the way he reunites with some familiar faces, while discovering cosmic new revelations about the history, purpose, and meaning of the Universe.
Why it matches: Recommended by TMDB viewers · both animation & science fiction
Worth the HypeMovies like thisMass Effect: Paragon Lost (2012)
An untold chapter in the Mass Effect saga, following the early career of Alliance Marine, James Vega, as he leads a squad of elite special forces into battle against a mysterious alien threat known as The Collectors. Stationed at a colony in a remote star system, Vega and his troops must protect the inhabitants from an invasion of the deadly insectoid warriors determined to collect the population for unknown purposes. Soon after the attack, Vega's commanding officer falls in battle, forcing the young officer to embrace the responsibility of leadership for the colony's survival. Having idolized Earth's greatest hero and warrior, Commander Shepard (the central character in the Mass Effect video games), the young and idealistic Vega must now make life and the death decisions that will effect not only the lives of his squad, but the lives of every person in the colony - all of whom he has sworn to protect...
Why it matches: Recommended by TMDB viewers · both animation & science fiction
Popcorn FlickMovies like thisThe Hitch Hikers Guide to the Galaxy (1981)
Don't Panic! The story of Arthur Dent, an average Englishman whose life was spared by his friend, who turned out to be an alien, while the planet Earth is destroyed. His friend tells him about the Hitchhiker's Guide to the Galaxy, a guide with anything you ever needed, and wanted to know. They travel across the galaxy, meeting friendly, and not so friendly characters in order to find the great question (the answer being 42).
Why it matches: Recommended by TMDB viewers · both adventure & science fiction
Worth the HypeMovies like thisThe Adventures of Buckaroo Banzai Across the 8th Dimension (1984)
Adventurer/surgeon/rock musician Buckaroo Banzai and his band of men, the Hong Kong Cavaliers, take on evil alien invaders from the 8th dimension.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Popcorn FlickMovies like thisSerenity (2005)
A group of rebels travel the outskirts of space evading the sinister Alliance regime. Their lives of smuggling and cargo-running are interrupted by a psychic passenger who harbours a dangerous secret. Soon, the crew find themselves being pursued by an Alliance agent who will stop at nothing to find them.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Worth the HypeMovies like thisSpaceman (2024)
Six months into a solo mission, a lonely astronaut confronts the cracks in his marriage with help from a mysterious creature he discovers on his ship.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Popcorn FlickMovies like thisFuturama: The Beast with a Billion Backs (2008)
Fresh off ripping space-time a new one at the end of "Bender's Big Score," the Planet Express crew is back to mend the tear in reality, or (hopefully) at least not make it worse. Beyond the tear, though, lurks a being of inconceivable...tentacularity. What will become of Earth, and indeed, our universe, when faced with the Beast with a Billion Backs?
Why it matches: Recommended by TMDB viewers · both animation & science fiction
Worth the HypeMovies like thisStar Trek: Insurrection (1998)
When an alien race and factions within Starfleet attempt to take over a planet that has "regenerative" properties, it falls upon Captain Picard and the crew of the Enterprise to defend the planet's people as well as the very ideals upon which the Federation itself was founded.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Popcorn FlickMovies like thisSolo: A Star Wars Story (2018)
Through a series of daring escapades deep within a dark and dangerous criminal underworld, Han Solo meets his mighty future copilot Chewbacca and encounters the notorious gambler Lando Calrissian.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Popcorn FlickMovies like thisProject: ALF (1996)
Six years ago, the lovable intergalactic fugitive Gordon Shumway, best known as ALF, was on his way back to his new home when the Alien Task Force finally caught up with him. Now, he is being studied at a top-secret military base where he finds allies who feel that ALF's existence should be announced to the world to ensure his safety... especially when they learn that the abrasive Colonel Milfoil wants ALF, and all Alien Life-Forms, destroyed.
Why it matches: Recommended by TMDB viewers · both family & science fiction
Popcorn FlickMovies like thisStarship Troopers: Invasion (2012)
The troopers of two starships have joined forces to terminate a massive bug attack at a Federation outpost. Before the mission can be completed and the survivors evacuated, one ship abruptly departs and goes inexplicably dark. The remaining battle-hardened troopers race to the rescue only to discover that the threat from the bugs is about to hit home.
Why it matches: Recommended by TMDB viewers · both animation & science fiction
SnoozefestMovies like thisStar Trek: Generations (1994)
Captain Jean-Luc Picard and the crew of the Enterprise-D find themselves at odds with the renegade scientist Soran who is destroying entire star systems. Only one man can help Picard stop Soran's scheme...and he's been dead for seventy-eight years.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Popcorn FlickMovies like thisBabylon 5: The River of Souls (1998)
A group of Soul Hunters come to Babylon 5 demanding the return of something that was stolen from them.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Popcorn FlickMovies like thisGuardians of the Galaxy (2014)
Light years from Earth, 26 years after being abducted, Peter Quill finds himself the prime target of a manhunt after discovering an orb wanted by Ronan the Accuser.
Why it matches: Recommended by TMDB viewers · both science fiction & adventure
Absolute CinemaMovies like thisTreasure Planet (2002)
When space galleon cabin boy Jim Hawkins discovers a map to an intergalactic "loot of a thousand worlds," a cyborg cook named John Silver teaches him to battle supernovas and space storms on their journey to find treasure.
Why it matches: Similar story and style · both science fiction & adventure
Worth the HypeMovies like thisMeet Dave (2008)
A crew of miniature aliens operate a spaceship that has a human form. While trying to save their planet, the aliens encounter a new problem, as their ship becomes smitten with an Earth woman.
Why it matches: Similar story and style · both science fiction & adventure
SnoozefestMovies like thisThe Rescuers (1977)
Two agents of the mouse-run International Rescue Aid Society search for a little orphan girl kidnapped by sinister treasure hunters.
Why it matches: Similar story and style · both family & animation
Popcorn FlickMovies like thisMoana (2016)
In Ancient Polynesia, when a terrible curse incurred by Maui reaches an impetuous Chieftain's daughter's island, she answers the Ocean's call to seek out the demigod to set things right.
Why it matches: Similar story and style · both adventure & family
Worth the HypeMovies like thisA Trip to the Moon (1902)
Professor Barbenfouillis and five of his colleagues from the Academy of Astronomy travel to the Moon aboard a rocket propelled by a giant cannon. Once on the lunar surface, the bold explorers face the many perils hidden in the caves of the mysterious planet.
Why it matches: Similar story and style · both adventure & science fiction
Absolute CinemaMovies like thisStar Trek III: The Search for Spock (1984)
A surprise visit from Spock's father provides a startling revelation: McCoy is harboring Spock's living essence.
Why it matches: Similar story and style · both science fiction & adventure
Popcorn FlickMovies like thisStar Trek IV: The Voyage Home (1986)
When a huge alien probe enters the galaxy and begins to vaporize Earth's oceans, Kirk and his crew must travel back in time in order to bring back whales and save the planet.
Why it matches: Similar story and style · both science fiction & adventure
Worth the HypeMovies like thisStar Trek V: The Final Frontier (1989)
A renegade Vulcan with a startling secret hijacks the U.S.S. Enterprise in order to find a mythical planet.
Why it matches: Similar story and style · both science fiction & adventure
SnoozefestMovies like thisStar Chaser (2024)
Escaping the destruction of her home world, 19-year-old Ajwan embarks on an interplanetary journey to deal with the fall-out, while a nefarious organization slowly acquires power across the galaxy.
Why it matches: Similar story and style · both science fiction & animation
Journeys to the Edge of Consciousness (2019)
Take an animated journey into the depths of the human mind, exploring three psychedelic trips that changed Western culture forever. Sixty years later we sit down with twelve leading current thinkers to ask: "What can expanded states of mind teach us about ourselves, the world and our place in it?"
Why it matches: Similar story and style · both animation & adventure
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Frequently asked questions
What are the best movies like The Secret of the Third Planet?
The closest matches to The Secret of the Third Planet are Titan A.E. (2000), Planet 51 (2009) and LEGO Star Wars: The Mandalorian (2026). Below are 27 more, each with the reason it matches.
What should I watch after The Secret of the Third Planet?
Start with Titan A.E. (2000), the closest match to The Secret of the Third Planet.
What is the highest-rated movie like The Secret of the Third Planet?
Regular Show: The Movie (2015), rated 7.9/10 by 455 TMDB users.
What is the newest movie like The Secret of the Third Planet?
LEGO Star Wars: The Mandalorian (2026) is the most recent release on this list.
How are movies similar to The Secret of the Third Planet chosen?
First come films that Trakt’s viewers watch alongside The Secret of the Third Planet, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.