Movies like Un-Nan - The Legend of the Eight-headed Serpent (2008)
The best movies like Un-Nan - The Legend of the Eight-headed Serpent (2008) are 20th Century Boys 2: The Last Hope (2009), Level 16 (2018) and One Piece: Giant Mecha Soldier of Karakuri Castle (2006). If Un-Nan - The Legend of the Eight-headed Serpent hooked you, these 20 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedDemon Slayer: Kimetsu no Yaiba Infinity Castle (2025)8.8/10 from 2,387 votes
- NewestStolen Girl (2025)Released 2025
- In Japanese20th Century Boys 2: The Last Hope (2009)Also in Japanese
20th Century Boys 2: The Last Hope (2009)
Set 15 years after "Twentieth Century Boys," Kanna (Airi Taira) reunites with several main characters from the first film in an attempt to stop Friend's increasing influence over the world and continued plans to eliminate humanity, as detailed in the New Book of Prophecy.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisLevel 16 (2018)
The teenage girls of Vestalis Academy are meticulously trained in the art of being “clean girls,” practicing the virtues of perfect femininity. But what exactly are they being trained for? Vivien intends to find out.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisOne Piece: Giant Mecha Soldier of Karakuri Castle (2006)
The Straw Hats visits an island, known as Mecha Island, where a fisherman sings an old folk song about a Golden Crown. Searching for that mysterious treasure, they find a hidden entrance into the island. The island's leader, Ratchet, impressed with the find and in search of the Golden Crown himself, invites the crew to join him in his search and the crew along with Ratchet and his henchmen enter the cave. As it turns out, the islands true form, is that of a giant turtle. Ratchet, who had known this all along, uses his mechanical castle to take control of the turtle, in order to use it, to take over the world. Now the Straw Hats have to stop not only Ratchet, but also the helpless turtle, from crashing into a nearby island.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisOne Piece: Heart of Gold (2016)
A girl named Olga is pursued by both the World Government and a man named Mad Treasure, as she is the only one who knows the location of the Pure Gold, a substance that can buy the entire world. Olga ends up sailing with the Straw Hat Pirates, and they journey to find the Pure Gold on the lost island of Alchemi, which is located inside the stomach of a large angler fish named Bonbori.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisOcean Waves (1993)
At Kichijōji Station, Tokyo, Taku Morisaki glimpses a familiar woman on the platform opposite boarding a train. Later, her photo falls from a shelf as he exits his apartment before flying to Kōchi Prefecture. Picking it up, he looks at it briefly before leaving. As the aeroplane takes off, he narrates the events that brought her into his life...
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisZatoichi's Pilgrimage (1966)
Zatoichi's trek through 88 temples to atone for his violent past is interrupted as he stumbles into a village terrorized by a violent yakuza boss.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisNew Tale of Zatoichi (1963)
Wishing to find peace, Zatoichi travels to his old village but only finds trouble when he ends up in a love triangle and finds old scores have followed him home.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisTokyo! (2008)
Three distinct tales unfold in the bustling city of Tokyo. Merde, a bizarre sewer-dweller, emerges from a manhole and begins terrorizing pedestrians. After his arrest, he stands trial and lashes out at a hostile courtroom. A man who has resigned himself to a life of solitude reconsiders after meeting a charming pizza delivery woman. And finally, a happy young couple find themselves undergoing a series of frightening metamorphoses.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisStolen Girl (2025)
In 1993, Maureen’s six-year-old daughter Amina is snuck out of the country by her ex-husband, Karim. After years of unsuccessful attempts to find her, Maureen intersects with a professional retriever of internationally abducted children who promises to help her find Amina in exchange for her collaboration.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisRascal Does Not Dream of a Dreaming Girl (2019)
In Fujisawa, Sakuta Azusagawa is in his second year of high school. Blissful days with his girlfriend and upperclassman, Mai Sakurajima, are interrupted by the appearance of his first crush, Shoko Makinohara.
Why it matches: Recommended by TMDB viewers
Absolute CinemaMovies like thisIf There Be Thorns (2015)
Christopher and Cathy Dollanganger live together as man and wife with Cathy's two sons who are unaware of the incestuous nature of their parents' relationship. But when a mysterious woman moves in next door and befriends the younger boy, Bart, he begins a strange transformation and displays accusatory behavior towards Cathy and Christopher. When Christopher discovers their mysterious neighbor is, in fact, his mother Corrine Dollanganger, all of the family's long-hidden secrets are revealed in a tragic climax.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisBattle Royale (2000)
In the future, the Japanese government captures a class of ninth-grade students and forces them to kill each other under the revolutionary "Battle Royale" act.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisTamako Love Story (2014)
Devoted to her family’s rice-cake–making business and the high school baton club, Tamako is a little slow when it comes to love. She’s oblivious to her childhood friend Mochizo’s affections, even though all their friends know. With graduation closing in and Mochizo leaving for Tokyo, will Tamako realise her feelings and tell him in time?
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisRascal Does Not Dream of a Knapsack Kid (2023)
Finally, the day of Mai's high school graduation has arrived. While Sakuta eagerly waits for his girlfriend, an elementary schooler who looks exactly like her appears before him. Suspicious, and for all the wrong reasons... Meanwhile, Sakuta and Kaede's father suddenly calls, saying that their mother wants to see her daughter. She was hospitalized because Kaede's condition had been too much for her to bear, so what could she possibly want now?
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisDemon Slayer: Kimetsu no Yaiba Infinity Castle (2025)
The Demon Slayer Corps are drawn into the Infinity Castle, where Tanjiro, Nezuko, and the Hashira face terrifying Upper Rank demons in a desperate fight as the final battle against Muzan Kibutsuji begins.
Why it matches: Recommended by TMDB viewers
Absolute CinemaMovies like thisOne Million Yen Girl (2008)
A 21-year-old girl is released from prison, only to deal with the neighborhood gossip about her and family conflicts. She decides to save one million yen, move to where no one knows her and keep repeating the process.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisThe Garden of Words (2013)
Takao, who is training to become a shoemaker, skipped school and is sketching shoes in a Japanese-style garden. He meets a mysterious woman, Yukino, who is older than him. Then, without arranging the times, the two start to see each other again and again, but only on rainy days. They deepen their relationship and open up to each other. But the end of the rainy season soon approaches.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisCrayon Shinchan the Movie: The Secret Treasure of Buri Buri Kingdom (1994)
The Noharas win a vacation to the Kingdom of Buri Buri -- but the whole thing was just a clever ploy by an evil organization to kidnap Shin-chan!
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like thisInitial D: Third Stage (2001)
With high school graduation right around the corner, Takumi Fujiwara has a lot on his mind and a lot to prepare for. Everything becomes even more complicated when Takumi is offered a spot on Ryosuke Takahashi's elite Kengai Racing Team, which seeks to assemble the greatest racers in the Gunma area for a tour of Japan's mountain passes. Before he can accept however, Takumi feels the need to settle the score with the Lancer Evo driving Emperor team, defend his downhill-racer crown against the son of his father's greatest rival, and finally settle things with his unfaithful girlfriend Natsuki.
Why it matches: Recommended by TMDB viewers
Popcorn FlickMovies like thisLove, Chunibyo & Other Delusions! Take On Me (2018)
Yuuta and Rikka are in their third year of high school. One day in Spring, Touka declares that she will take Rikka to Italy with her, as her job has stabilized there and thinks they should migrate together as a family. Touka is also worried about Rikka not being competent enough to advance to universities in Japan. The gangs from the club suggested Yuuta, who doesn't want to be separated, to elope with Rikka!! A runaway drama throughout Japan begins.
Why it matches: Recommended by TMDB viewers
Worth the HypeMovies like this
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Frequently asked questions
What are the best movies like Un-Nan - The Legend of the Eight-headed Serpent?
The closest matches to Un-Nan - The Legend of the Eight-headed Serpent are 20th Century Boys 2: The Last Hope (2009), Level 16 (2018) and One Piece: Giant Mecha Soldier of Karakuri Castle (2006). Below are 17 more, each with the reason it matches.
What should I watch after Un-Nan - The Legend of the Eight-headed Serpent?
Start with 20th Century Boys 2: The Last Hope (2009), the closest match to Un-Nan - The Legend of the Eight-headed Serpent.
What is the highest-rated movie like Un-Nan - The Legend of the Eight-headed Serpent?
Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025), rated 8.8/10 by 2,387 TMDB users.
What is the newest movie like Un-Nan - The Legend of the Eight-headed Serpent?
Stolen Girl (2025) is the most recent release on this list.
Are there Japanese movies like Un-Nan - The Legend of the Eight-headed Serpent?
Yes: 20th Century Boys 2: The Last Hope (2009), One Piece: Giant Mecha Soldier of Karakuri Castle (2006) and One Piece: Heart of Gold (2016).
How are movies similar to Un-Nan - The Legend of the Eight-headed Serpent chosen?
First come films that Trakt’s viewers watch alongside Un-Nan - The Legend of the Eight-headed Serpent, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.