What began as an internet horror phenomenon has suddenly transformed into one of the biggest theatrical stories of 2026. Backrooms, the highly anticipated A24 adaptation of the viral analog-horror universe created by Kane Parsons, is now tracking for a massive domestic opening weekend after delivering approximately $9 million in Thursday previews alone. According to multiple trade estimates, the film is currently eyeing a stunning $67 million to $80 million opening frame in North America, numbers that would make it not only the biggest opener in A24 history but also one of the largest horror launches of the year.
The speed of the movie’s rise has caught much of the industry by surprise. Just weeks ago, early tracking projections suggested an opening somewhere in the $40 million range. However, momentum around the film has accelerated dramatically over the last several days following explosive pre-sales, sold-out late-night screenings, and strong Gen Z-driven social media buzz that has continued intensifying heading into release weekend.
Several exhibitors have reportedly added additional showtimes to accommodate demand, particularly for premium formats and late-night screenings that are overperforming heavily in urban markets. Trade analysts covering the release now increasingly believe the movie is behaving less like an experimental internet-horror adaptation and more like a major studio horror franchise launch.
That comparison is significant because Backrooms is not based on a traditional Hollywood property. The movie originates from the surreal “Backrooms” internet mythology that exploded online through creepypasta forums, YouTube horror videos, TikTok culture, gaming communities, and analog-horror fandom. The concept — centered around endless empty yellow hallways, liminal spaces, and unseen entities lurking beyond reality — gradually evolved into one of the internet’s most recognizable horror phenomena over the last several years.
Kane Parsons himself first gained widespread recognition through short-form Backrooms horror videos uploaded to YouTube, where his unsettling found-footage aesthetic and environmental storytelling generated millions of views. His transition from online creator to large-scale theatrical filmmaker has now become one of the defining narratives surrounding the film’s breakout momentum.
Trade publications have increasingly compared the film’s current tracking patterns to recent horror event launches including Scream 7, Five Nights at Freddy’s 2, Weapons, and Final Destination Bloodlines. Earlier this year, Scream 7 itself became one of the genre’s biggest theatrical success stories after opening to franchise-record numbers and eventually crossing more than $200 million worldwide despite significant behind-the-scenes controversy.
Unlike many heavily front-loaded horror titles, however, Backrooms appears to have another major advantage working in its favor: strong reviews. Early critical reactions have significantly strengthened confidence around the film’s commercial prospects, with many reviewers praising the movie’s oppressive atmosphere, psychological tension, analog-horror aesthetic, and immersive sound design. Critics have also highlighted how effectively the film expands internet horror mythology into feature-length storytelling without losing the unsettling minimalism that made the original online phenomenon so popular in the first place.
The strong reception has helped position Backrooms as more than just a viral curiosity, especially after the film’s Backrooms review roundup revealed unusually positive reactions for an experimental horror release attempting to translate internet-native storytelling into mainstream theatrical filmmaking.
Several critics have specifically praised Parsons’ transition from YouTube creator to studio filmmaker, noting the film’s confidence with environmental horror, large-scale suspense construction, and minimalist visual storytelling. The positive reviews are becoming particularly important because horror films that combine critical support with younger audience enthusiasm have recently shown unusually strong theatrical legs.
That trend has already become visible elsewhere in the horror market this year. Curry Barker’s Obsession recently shocked the industry after delivering one of the strongest second-weekend increases in modern horror box office history through massive Gen Z-driven word-of-mouth. At the same time, Scream 7 demonstrated that theatrical horror franchises continue to thrive with younger audiences despite growing streaming competition.
As a result, 2026 is increasingly being viewed as one of the strongest years for horror cinema in recent memory, both commercially and culturally.
Much of that momentum appears directly connected to younger audiences embracing horror movies as large-scale communal theatrical experiences again. In the case of Backrooms, Gen Z viewers have transformed the film into a full-scale online event through TikTok memes, reaction videos, analog-horror fandom, liminal-space discussions, gaming culture, and internet theory communities.
Trade outlets covering the movie’s breakout have repeatedly pointed toward unusually high younger-audience turnout and social engagement metrics surrounding the film. Some tracking analysts have even noted that the online momentum surrounding Backrooms resembles franchise launches more than original horror releases.
For A24, the movie could become a landmark theatrical success. Over the last decade, the studio has built a major reputation within prestige horror through films like Hereditary, Midsommar, Talk to Me, and Civil War, but Backrooms appears positioned to operate at an entirely different commercial scale.
If current projections hold, the film could deliver the biggest opening weekend in A24 history while simultaneously becoming one of the clearest examples yet of internet-born horror IP evolving into mainstream blockbuster theatrical business. What started as a strange online horror concept hidden deep within internet culture is now rapidly becoming one of the year’s biggest box office phenomena.
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