Arturo Ambriz bets Mexican stop-motion can carry a gothic feature in I Am Frankelda

Frankelda is a horror novelist nobody will publish, in a Mexico that has decided her sentences are too dark for the parlor. Her monsters take that decision personally. I Am Frankelda turns the dismissal into a kingdom, and it does so as the first stop-motion feature Mexico has put on the world’s screens. The argument the picture makes is that the kingdom was always there, waiting for the right writer to admit it.

What Arturo Ambriz has done is build that conceit out of physical puppets, frame by frame, in a studio Mexico did not have for features until Cinema Fantasma decided to make one exist. The film comes out of the same property as Frankelda’s Book of Spooks, the Cartoon Network series the Ambriz studio shipped before this picture went into production. Stop-motion at feature length is the kind of jump animation production rarely survives without breaking a studio. The bet here is that the medium is the message: silicone faces under practical light carry a register flat digital animation cannot.

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The voice cast is the second argument the film makes. Mireya Mendoza voices Frankelda herself, the writer pulled into the kingdom of her own monsters, and she gives the role the dry-eyed exhaustion the character requires rather than the wide-eyed wonder a kid-skewing animated film would normally ask for. Arturo Mercado Jr. voices Herneval, the Prince of Spooks, with the patience of a guide who has been waiting longer than the protagonist would believe. Luis Leonardo Suárez plays Procustes, Gaby Cárdenas plays Reina Veritena, and Beto Castillo plays Rey Ficturo, credits that anchor the picture inside a Mexican voice ecosystem that almost never gets a stop-motion feature to work in.

Arturo Ambriz is the structural argument. He came up through the Cinema Fantasma studio he co-founded in Mexico City, and the studio’s reputation rests first on the Cartoon Network series that introduced the Frankelda character, then on a short cycle of original stop-motion work that did festival rounds before the feature greenlight came. Moving the property from a 22-minute episodic shelf to a 104-minute stop-motion feature is the kind of scale jump that asks a studio to triple its rig count and its discipline at once. Ambriz has built the picture on the bet that the practical craft, the puppets, the lighting, the deliberate seam-visible texture, holds attention across the entire running time.

The film’s frame is strange, and the strangeness is the point. Frankelda is a 19th-century Mexican woman who writes horror nobody will print, and who travels in ghost form to the Realm of Fiction, a kingdom inhabited by the Spooks she has invented on her own pages. Her work, once there, is to keep the Realm of Fiction and the Realm of Existence from collapsing into each other, with the prince Herneval as the guide who needs her talent to hold the balance. The structural pun the picture is built on is literally about fiction’s autonomy from its writer, dramatized by a film in which animators spent years giving puppets autonomy from the hands that built them.

What I Am Frankelda does not resolve, on the basis of the international rollout to date, is whether the conceit’s elegance carries through a 104-minute feature or whether the strongest material is concentrated in the first hour. The setup the film opens on, with the writer dismissed and her monsters animate inside a kingdom in crisis, is the kind of architecture that supports an episode beautifully and a feature only with discipline. Critics in Mexico, France, and Germany have written warmly about the craft and more cautiously about the second-act structure, and the film’s 8.3 average on a still-modest vote pool is consistent with a picture that audiences who find it love and audiences not actively looking for stop-motion have not yet been asked to find. The Annecy festival placement helped; the remainder of the rollout will tell whether the craft pull crosses over.

The credited principals are Mireya Mendoza, Arturo Mercado Jr., Luis Leonardo Suárez, Gaby Cárdenas, and Beto Castillo. The runtime is one hundred and four minutes. The original Spanish title is Soy Frankelda, and the property’s screen debut came through Frankelda’s Book of Spooks on Cartoon Network before the feature went into production at Cinema Fantasma, the Mexico City studio that has spent the past decade building the country’s first sustained stop-motion infrastructure for theatrical work.

I Am Frankelda opened in the United States on October 19, 2025, and reaches Singapore on June 12, 2026, closing out an international rollout that has already touched Mexico, Canada, Hong Kong, Korea, Japan, Germany, France, Russia, and Australia. The remaining theatrical windows are the picture’s coda; the larger claim, that Mexican stop-motion is now a category that exists, has already been tested in front of paying audiences across three continents.

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