6 Years Ago, Demon Slayer Changed The Anime Industry For The Worse

Published Jul 26, 2026, 12:00 PM EDT Emedo Ashibeze is a tenured journalist and critic specializing in the entertainment industry. Before joining ScreenRant in 2025. he wrote for several major publications, including GameRant. The release of Demon Slayer: Mugen Train in July 2020 sent ripples through the anime industry and left an unprecedented mark worldwide, dominating the box office with over $500 million in gross and becoming the highest-grossing anime film of all time. This was a monumental achievement that altered the status quo of anime cinema. Before Mugen Train, anime films in the industry spanned a vibrant, experimental spectrum. Artistic freedom was prioritized, and audiences could enjoy standalone original masterpieces, non-canon side adventures, and creative visual experiments that gave rising directors opportunities. After Mugen Train, however, there has been a paradigm shift, with movies merely serving as mandatory narrative continuations of ongoing TV series. Ultimately, movies are no longer self-contained artistic statements; they have become bridge episodes designed to set up the next television season rather than to resolve anything on their own terms. This standard can be traced to a specific origin point: the release of Mugen Train. What anime has gained in guaranteed box office returns, it has traded for creative freedom. How Mugen Train Shattered the Feature Spectrum: The $500 Million Milestone That Traded Creative Freedom for Box-Office Certainty Every industry-shifting change can be traced to its ground zero, and the modern anime film landscape can be traced back to a single date: July 16, 2020. On that day, Demon Slayer: Mugen Train was released to Japanese audiences, achieving devastating success. At the time, what seemed like a localized phenomenon would go on to become an unprecedented economic juggernaut. By the end of its theatrical run, the movie broke every financial record imaginable, grossing a monumental $500 million and dethroning Ghibli’s Spirited Away as the highest-grossing anime film of all time. It was a testament to stellar animation, marketing, and fan fervor. However, the film didn’t just break box office records; it altered the philosophy behind anime production. Before Mugen Train achieved this historic milestone, greenlighting a theatrical anime feature was a calculated risk; production companies balanced their ledgers by backing a diverse, vibrant range of projects. Audiences were treated to non-canon side stories that wouldn’t disrupt the main TV plot, experimental passion projects from visionary creators, and entirely original screenplays that existed outside the constraints of manga. Mugen Train signaled to studios that it was no longer necessary to pitch an original concept, build new worlds, or gamble on a director’s unique vision to fill theatres. A more accessible financial shortcut was found: animate a popular, canonical arc from a serialized manga with impressive style and turn it into a must-watch for the ongoing TV series. The half-billion-dollar milestone established a predictable financial model for the anime industry, but it came at the expense of creative freedom. Once Mugen Train surpassed that historic financial benchmark, caution grew around original films, as they represented an uncertain gamble as opposed to the fixed audience of a continuing series. Consequently, by trading the unpredictable world of standalone filmmaking for the safe bet of franchise extensions, the industry inadvertently traded its artistic soul for box-office certainty. This Faustian bargain risks starving the medium of the creative risks that built its global reputation in the first place. The Commercialization of Canonical Continuity: The Advent of the Bridge Movie Phenomenon The immediate consequence of the post-Mugen Train era was the popularisation of the “bridge movie”. Historically, anime films tied to ongoing television series were fun, beautifully animated stories that were tantamount to disposable side adventures. Missing a Dragon Ball Z or Naruto movie in theatres in the past didn’t affect fans when jumping right back into the next television broadcast. Gone are the days when the plot reset by the time the credits rolled, ensuring the status quo remained unblemished; that status quo has been dismantled. It has been replaced by a commercial strategy that turns theatrical releases into mandatory, canonical bridge episodes. Films are no longer built to be standalone cinematic experiences. As a result, they function as a highly produced 90-minute transition, specifically engineered to connect Season A to Season B. They open in medias res, requiring viewers to have done extensive homework to fully understand the plot, and they close with unresolved cliffhangers designed to encourage audiences to pick up the ongoing series where the film left off. The blueprint for turning arcs of ongoing manga or anime into films has become the dominant economic standard for the industry’s biggest intellectual properties. The year 2025 shows how deeply this model has taken root, with Demon Slayer: Infinity Castle grossing $780 million globally and Chainsaw Man: The Movie, Reze Arc, adopting the same playbook. Ultimately, modern anime films are no longer judged by the strength of their individual script, pacing, or thematic completeness. Their value is tied to canon status, meaning a film no longer tells a complete narrative. This commercialization of a commodity helps ensure box-office success, but it cheats fans out of a full cinematic experience, turning films into glorified promotional tools. The Erasure of the Artistic Risk-Takers: The Legacy of Ghibli, Kon, and Gainax Left Behind Custom Image by Ana Nieves The inevitable and regrettable casualty of the post-2020 landscape is the gradual, structural shift in how studio executives view theatrical film releases and their role in the studio’s overall strategy. Cinema was once the arena for artistic exploration, allowing creators to escape the brutal constraints of weekly television schedules, low broadcast budgets, and the relentless pressure to maintain a serialized status quo. However, today the silver screen has been transformed into a highly optimized corporate instrument designed to maximize profit through pre-existing intellectual property. As a result, a feedback loop ensures that only already popular serializations and ongoing anime receive film adaptations of highly anticipated arcs, leaving no room for the unproven or the eccentric. Consequently, the current economic model has no interest in sustaining the legendary filmmaking traditions that originally defined anime’s global prestige. The industry has made the high-budget, standalone original risks of Studio Ghibli effectively obsolete, making the resurgence of original masterpieces in the same vein as Spirited Away less likely. The doors have been closed on the uncompromising, auteur-driven adult cinema of Satoshi Kon at Madhouse, whose complex psychological thrillers, such as Perfect Blue and Paprika, are now seen as corporate liabilities and would likely not be produced and released in the current era. The modern era has no place for the chaotic creative subversion of 1990s Gainax. Moreover, fans are questioning whether any genuinely original films are being released, especially those that explore complex themes and psychology rather than simply focusing on big battles with a basic plot in between. There is strong demand for greater diversity in anime movies, which can only be achieved by giving creators more creative freedom. Ultimately, the industry has successfully engineered the extinction of creative risk. On paper, the current model for anime films guarantees staggering annual box-office figures and flawless quarterly earnings; it does so at the cost of the medium’s artistic daring. Moving away from standalone theatrical features risks alienating fans and discouraging the next generation of individual visionaries in the long run. Demon Slayer: Kimetsu no Yaiba Release Date 2019 - 2024-00-00 Network Fuji TV, Tokyo MX, Gunma TV, BS11, Tochigi TV, Kansai TV, Tokai Television Broadcasting, Fukui TV, Hokkaido Cultural Broadcasting, Iwate Menkoi Television, Sendai Television, SAGA TV, TNC, OHK, Ishikawa TV, Kochi Sun Sun Broadcasting, TV Shizuoka, UMK TV Miyazaki, Television Shin Hiroshima System, NST, NBS, Sakuranbo TV, TSK, Ehime Broadcasting, KTS, NIB, Fukushima TV, TOS, AKT, Toyama Television, TV Kumamoto, Okinawa Television Broadcasting Cast Natsuki Hanae Tanjiro Kamado (voice) Akari Kito Nezuko Kamado (voice)