Backrooms, A24’s $10 million film that has thus far raked $330,098,049 globally, is arguably the biggest success story of 2026. And in Hollywood, success breeds imitation.

Studios will probably never entirely abandon superhero films, sequels, prequels and remakes/reboots/reimaginings of existing films, but the acclaimed and lucrative Backrooms, which was originally a series of short films on creator Kane Parsons’ YouTube channel, may be leading movie execs to look in unfamiliar corners of the internet to find their unicorn – a film that can be made cheaply yet still reap boffo box office.

Warner Bros. has found Siren Head.

The studio plunked down multiple millions for the rights to a creature called Siren Head (above), created in 2018 by artist Trevor Henderson and used in several artists’ short films, video games, and other content. Warner is already assembling a top-tier production team for the concept: Zach Cregger, who directed the 2025 hit Weapons, will write the script with Brian Duffield, who is also directing. Duffield also directed Whalefall, an upcoming film about a guy who has to fight for survival from inside of a whale. Cregger and Duffield are also producing the Siren Head movie.

Siren Head, a tall, skeletal figure with a dual-speaker siren for a head and an apparent taste for human blood, is featured in Shutter Authority’s 2020 short film (link below) as well as an interactive videogame from Modus Interactive, which also came out in 2018.

Creator Alex Howard created a clip featuring the character dancing on TikTok in 2020, and Shutter Authority has featured the character in a couple other videos as well, but the character has no official origin story. It’s not exactly a meme, nor a creepypasta – just a character that has inspired a lot of creators to do their own thing, and a lot of excited response from the Gen-Z crowd.

It’s hard to put down exact numbers, but the media featuring this creature that lurks in rural, wooded areas, blaring out random announcements and air-raid siren wails, has racked up around 3 billion TikTok views, one billion YouTube views, and millions of Roblox plays.

Now Warner Bros., which beat out four other studios to pick up the film rights, will do their own thing with Siren Head, in the hopes that it will do for them what those eerie and mysterious Backrooms did for A24.

Warner Bros. has yet to issue any plot details, cast announcements, or a potential release date for Siren Head: The Movie.