‘Backrooms’ Turns YouTube Horror Into a Box Office Sensation

Just three days after arriving in cinemas, Backrooms has transformed from one of 2026’s most intriguing horror releases into a full-blown box office phenomenon.

The feature debut from 20-year-old filmmaker Kane Parsons has stunned industry analysts with an opening weekend haul of $81 million in North America, securing the number one spot at the box office and delivering the biggest opening in the history of distributor A24.

The success story became apparent almost immediately. On Friday alone, Backrooms generated a remarkable $38 million, comfortably outperforming pre-release projections and setting the stage for what has now become one of the year’s biggest horror success stories. Industry estimates initially suggested the film might open somewhere around $20 million before climbing to forecasts in the $40 to $50 million range closer to release. Instead, audiences turned out in far greater numbers than expected.

The opening weekend result surpasses A24’s previous record holder, Alex Garland’s Civil War, which debuted to $25.5 million. It also places Backrooms among the most significant horror launches in recent memory, particularly considering the film’s reported production budget of under $10 million.

For Parsons, the achievement carries additional historical significance. According to industry reports, the filmmaker has become the youngest director ever to open a film at number one in North America. At just 20 years old, he eclipses the previous record set by Josh Trank, who was 27 when Chronicle topped the box office in 2012.

The film’s success represents a remarkable journey for a project that began on YouTube. Parsons first launched his Backrooms web series in January 2022 through his Kane Pixels channel, building upon the internet’s popular Backrooms creepypasta mythology. The online series quickly attracted attention for its unsettling depiction of endless liminal spaces and mysterious entities lurking beyond reality.

Hollywood soon took notice. A24 joined forces with Chernin Entertainment, Atomic Monster and 21 Laps Entertainment to develop a feature adaptation, with Parsons remaining in the director’s chair. The resulting film stars Chiwetel Ejiofor as Clark, a struggling furniture store owner who discovers a portal to an endless extradimensional labyrinth hidden within his business. Renate Reinsve co-stars as therapist Mary Kline, alongside Mark Duplass, Finn Bennett, Lukita Maxwell and Avan Jogia.

The film’s rapid rise has also sparked discussion online regarding Parsons’ age and creative control. Some social media users questioned whether a filmmaker so young could genuinely be responsible for a production of this scale. Actor Mark Duplass publicly dismissed those claims, stating that Parsons was fully in command throughout production. Parsons responded with characteristic humour, joking about a mysterious figure known only as “The Older Gentleman” secretly directing most films released in North America and Europe.

The triumph of Backrooms continues a notable trend that has seen online creators successfully transition into mainstream cinema. Earlier this month, fellow YouTube creator Curry Barker scored a major horror hit with Obsession, demonstrating that digital-first storytellers are increasingly capable of drawing significant theatrical audiences.

The success may only be the beginning. Parsons recently confirmed that the Backrooms universe is far from finished, revealing that additional projects are already in development and that his original YouTube series will continue alongside the feature films.

With $81.5 million already earned domestically and $118 million worldwide after its opening weekend, Backrooms has not only exceeded expectations but fundamentally rewritten them.

Backrooms trailer