How 'Backrooms' Became A24's Biggest Hit and Rewrote the Rules for Horror

For years, the horror genre has been treated as cinema's reliable underdog, dependable at the box office but rarely celebrated as a genuine headline act. That old perception is now being turned firmly on its head, and the shift can be traced back to one unlikely film that grew out of an internet legend.

The movie in question is Backrooms, an adaptation of a piece of online folklore that has quietly become one of the most talked about releases of the entire year. Its runaway success has not only surprised industry observers, but has also rewritten the record books for the studio behind it.

From creepypasta to record breaker

The story of Backrooms begins far away from Hollywood, in the stranger corners of the internet. The film is based on the so-called Backrooms, a piece of liminal space creepypasta that imagines an endless maze of empty rooms, a concept that spread widely online long before it ever made its way to the big screen.

According to reporting, the finished film went on to gross 396.5 million dollars worldwide, a figure that makes it the highest grossing release ever for the independent studio A24. For a company largely built on smaller, auteur driven projects, the sheer scale of that number marks a genuine turning point.

A debut that shattered records

The film did not simply perform well over time, it practically exploded out of the gate. According to the reports, Backrooms opened to 81 million dollars domestically, a debut that more than tripled the studio's previous record, the 25.5 million dollars once earned by the acclaimed film Civil War.

The momentum then continued at a truly remarkable pace. The same reporting notes that the film crossed the 100 million dollar mark domestically in just six days, a speed that cemented its status as the biggest movie in the studio's history at the domestic box office almost immediately after release.

Overtaking the studio's own hits

What makes the achievement even more striking is the company that it leaves behind. According to the coverage, Backrooms overtook another recent success, Marty Supreme, which had reached around 96 million dollars domestically, in order to claim the very top spot in the studio's all time rankings.

For an outfit best known for prestige dramas and offbeat independent films, seeing a horror title lead its charts is a genuinely notable moment. It suggests that the genre, long dismissed in certain circles, can now compete with almost anything the studio has ever released in terms of sheer commercial power.

The next stop is streaming

Having thoroughly conquered cinemas, the film is now preparing for its next act. According to reports, Backrooms is set to arrive on the streaming service HBO Max on the twenty fifth of September, giving the many viewers who missed it in theaters a chance to finally experience the maze from home.

This move reflects a familiar rhythm of the modern film business, where a strong theatrical run is followed by a streaming release designed to reach an even wider audience. For a film so deeply rooted in an online phenomenon, returning to screens of all sizes feels almost strangely fitting.

A wave of horror on streaming

Backrooms is far from alone in its timing, as September has quietly become a busy month for the genre across streaming platforms. According to streaming guides, a wide range of services are expanding their horror offerings, catering to audiences who traditionally turn to the genre as the autumn nights grow longer.

Among the titles cited in these guides is a new entry in a long running horror spoof franchise, Scary Movie 6, which arrived on Paramount Plus at the very start of the month. The breadth of these releases underlines just how central horror has become to the streaming calendar, particularly heading into the autumn season.

Why horror is having its moment

The reasons behind the genre's rise are not especially hard to identify. Horror films are frequently made on modest budgets yet remain capable of enormous returns, a combination that makes them deeply attractive to studios and streamers alike. When one truly breaks through, as Backrooms has, it can reshape expectations for the entire category.

Whether Backrooms ultimately proves to be a one off sensation or the start of a much broader shift still remains to be seen. What is already clear is that a story born on the internet has become one of the defining film successes of the year, reminding the industry never to underestimate the enduring pulling power of a good scare.