A24 has a new king of the box office. “Backrooms,” a horror film born from a viral YouTube series, has become the biggest domestic box office success in the studio’s history. The achievement overtook previous record-holder “Everything Everywhere All at Once” just days after its theatrical debut.
The film crossed the $100 million mark in less than one week. That blistering pace delivers one of the fastest and strongest performances ever seen from an A24 release. For a studio known for arthouse darlings and slow-burn award contenders, “Backrooms” represents something entirely new: an internet-native phenomenon turned mainstream blockbuster.
The person behind the camera makes the story even more astonishing. Director Kane Parsons first gained attention through his own YouTube series, also called “Backrooms.” The project grew from creepy online shorts into a fully realized theatrical feature. Now, at just 20 years old, Parsons has become the youngest filmmaker to lead the domestic box office.
Parsons built his career outside Hollywood’s traditional gatekeeping systems. He learned his craft online, released work directly to fans, and let the algorithm reward his talent. When A24 picked up the project, the gamble paid off beyond anyone’s expectations.
The film’s success has a clear demographic driver. The majority of opening-weekend moviegoers came from Gen Z and audiences under 35. Younger viewers showed up in force, transforming a horror movie about liminal spaces and existential dread into a genuine cultural event.
“Backrooms” proves that internet-born horror can translate to the big screen without losing its soul. It also signals that A24, long associated with prestige cinema, can compete in the commercial horror arena against major studios. With $100 million already in the bank and weeks of theatrical run still ahead, Parsons and his “Backrooms” have permanently reshaped what an indie horror hit looks like.
