Yet here we are. Hidari, an upcoming feature-length stop-motion film, has landed Reeves in the lead role, and the project already feels like something special. Directed and written by Masashi Kawamura, the movie expands on a 2023 short film that introduced audiences to a fantastical version of a real historical figure from Japan’s Edo period. If you have ever wondered what a one-armed samurai with mechanical prosthetics and a wooden cat sidekick looks like in painstaking stop-motion, this is your answer.
The Story of Hidari: From Short Film to Feature
In 2023, Masashi Kawamura released a short stop-motion film titled Hidari as a proof of concept. That short caught the attention of Keanu Reeves, who later signed on to voice the protagonist in a full-length version. The feature is now in active development, with Reeves not only lending his voice but also helping shape the world and narrative.
The 2023 Short Film as Proof of Concept
The original short ran about eight minutes and introduced the core premise: a samurai named Jingorō Hidari loses his right arm and seeks vengeance. The short showcased Kawamura’s distinctive visual style — a blend of traditional Japanese aesthetics and intricate stop-motion craftsmanship. The reception was strong enough to convince the team that a feature was viable.
Masashi Kawamura’s Vision
Kawamura is known for his work in both animation and live-action, but Hidari represents his most ambitious stop-motion project yet. He has described the film as a “passion project” that combines his love for samurai folklore, mechanical design, and emotional storytelling. In press materials, Kawamura expressed excitement about collaborating with Reeves, noting that the actor’s creative input has helped expand the film’s world beyond the original short.
Who Was Jingorō Hidari? The Real Historical Figure
Before the fantasy elements take over, it helps to understand the man behind the legend. Jingorō Hidari was a real person who lived during Japan’s Edo period (1603–1868). He worked as an architect, sculptor, and even a comedian. His name “Hidari” means “left,” which some historians believe referred to his left-handedness — a rarity in a time when left-handedness was often suppressed.
Architect, Sculptor, and Comedian of the Edo Period
Hidari is credited with designing and carving the famous sleeping cat (nemuri neko) that adorns the Nikko Toshogu Shrine. He also contributed to the reconstruction of Edo Castle, a massive project that employed thousands of artisans. Beyond his carpentry, Hidari was known for his wit and comedic performances, making him a multi-talented figure in an era that valued specialization.
How the Film Adapts His Legend
Kawamura’s film takes considerable liberties with history. The real Hidari did not lose an arm, nor did he seek revenge with mechanical prosthetics. The movie borrows the name, the setting, and the connection to Edo Castle, but transforms him into a tragic hero. The decision to give him a mechanical arm and a wooden cat companion adds a steampunk-adjacent fantasy layer that sets the film apart from traditional samurai stories.
Keanu Reeves Hidari: The Actor’s Role and Involvement
When news broke that Keanu Reeves would voice the lead in Hidari, fans of both the actor and stop-motion animation took notice. Reeves is no stranger to voice work — he voiced Duke Caboom in Toy Story 4 and has narrated documentaries — but this role marks his first lead in a stop-motion feature.
Why Reeves Was Drawn to the Project
In a press release, Reeves called the project “truly extraordinary” and said it has “all the makings of an exceptional film.” He praised the team’s dedication from the proof-of-concept stage through script development. For an actor who has played iconic action heroes like John Wick and Neo, the opportunity to portray a one-armed samurai in a stop-motion world likely offered a fresh creative challenge.
His Contribution Beyond Voice Acting
Kawamura has emphasized that Reeves is not just lending his voice. He is actively helping shape the narrative and visual world. “When someone with his experience and creative vision watches your proof of concept and says, ‘I want to be part of this,’ it’s an incredible feeling,” Kawamura said. That level of collaboration suggests that the final film will carry Reeves’ sensibilities — a blend of stoic intensity and quiet vulnerability.
Stop-Motion Animation and Samurai Revenge: A Perfect Match
Stop-motion animation has a tactile quality that suits historical fantasy. The deliberate frame-by-frame process gives every movement weight and intentionality. For a revenge story where the protagonist rebuilds himself with mechanical parts, stop-motion can make those prosthetics feel tangible in a way CGI sometimes cannot.
The Visual Style and Craftsmanship
Kawamura’s team has built detailed miniature sets, including a replica of Edo Castle and rural landscapes. The puppets are articulated with ball-and-socket joints, allowing for fluid but slightly jerky motion that enhances the otherworldly tone. The wooden Sleeping Cat companion is a particular highlight — its carved expression and subtle movements convey emotion without dialogue.
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Comparison to Other Recent Stop-Motion Features
Recent stop-motion films like Guillermo del Toro’s Pinocchio and The House have pushed the medium toward darker, more mature storytelling. Hidari fits that trend. It is not a children’s film. The revenge plot involves violence (though stylized), loss, and moral ambiguity. Fans of Kubo and the Two Strings will find a similar blend of Japanese folklore and emotional depth, but Hidari leans harder into historical fantasy.
What to Expect from the Plot: Revenge, Mechanical Prosthetics, and a Wooden Cat
The story follows Jingorō Hidari after his father figure and fiancée are murdered, and his right arm is severed. He replaces the lost limb with a series of mechanical prosthetics — each with unique functions — and sets out with his wooden Sleeping Cat companion to hunt down those responsible. Along the way, he discovers connections to the reconstruction of Edo Castle, a massive government project that hides dark secrets.
The Loss of Arm and Father Figure
The emotional core of the film is Hidari’s trauma. Losing his arm is not just a physical blow — it symbolizes his loss of agency. The mechanical arm becomes an extension of his will, but also a reminder of what he has sacrificed. The father figure, likely a mentor or master craftsman, represents the traditional world he can no longer return to.
The Sleeping Cat Companion
In Japanese folklore, the sleeping cat (nemuri neko) is often a symbol of protection and good fortune. In the film, the cat is carved from wood by Hidari himself. It moves with jerky, lifelike animation and serves as both a sidekick and a silent witness to his journey. The cat’s presence adds a touch of warmth to an otherwise grim narrative.
Connection to Edo Castle Reconstruction
Historically, the reconstruction of Edo Castle (now the Imperial Palace) was a massive undertaking that employed thousands. In the film, the castle project becomes a conspiracy. The villains are not just bandits — they are powerful figures who use the reconstruction to cover up their crimes. This layer of political intrigue elevates the story beyond a simple revenge quest.
Release Date and Where to Watch
As of now, Hidari does not have a confirmed release date. The project is still in production, with no distributor announced yet. Given the complexity of stop-motion animation, a 2026 or 2027 release seems realistic. Fans should monitor announcements from the film’s official channels and from Masashi Kawamura’s production company. Theatrical release is expected, with streaming rights likely to follow.
Why This Film Matters: Blending History, Fantasy, and Animation
Hidari represents a convergence of several trends: the resurgence of stop-motion for adult audiences, the enduring appeal of samurai stories, and Keanu Reeves’ continued willingness to take risks. For viewers who love animation as an art form, this film promises to push the medium forward. For history buffs, it offers a playful reimagining of a real figure. And for fans of Keanu Reeves, it is another chance to see him bring depth to a character who is both broken and resilient.
Look for the Keanu Reeves-led Hidari to hit theaters in the near future. Until then, the short film remains a tantalizing glimpse of what is to come. Whether you are drawn by the stop-motion craftsmanship, the samurai revenge plot, or simply the actor behind the voice, Hidari is a project worth watching.
