Backrooms: A24's YouTube-to-Theater Horror Movie Starring Chiwetel Ejiofor Hits Theaters May 29 — Everything We Know

From YouTube Creepypasta to A24 Theater Release

What started as a viral YouTube series by teenage creator Kane Parsons (also known as Kane Pixels) is now a full-blown A24 horror movie hitting theaters on May 29, 2026. Backrooms might just be the biggest horror event of the summer, and it's the kind of genre-defying project that could redefine how internet culture translates to the big screen.

From Viral Sensation to Hollywood Production

A24 bought the rights to adapt Parsons' viral Backrooms videos back in 2023, and in a move that thrilled fans, they brought the now 20-year-old director along for the entire journey. Parsons originally created the series using Blender, the free 3D modeling software, and his liminal-space horror aesthetic captured millions of viewers who were equal parts terrified and fascinated.

The leap from YouTube to theatrical release isn't just a scale-up — it's a transformation. Parsons combines the same filmmaking tools that made his original videos so unsettling with full Hollywood production resources, creating something that honors the source material while expanding it into a feature-length experience.

The Cast and the Story

Chiwetel Ejiofor (The Martian, Doctor Strange) leads the cast as Clarke, a failed architect who believes he's discovered a "dimension beyond reality" at the back of a furniture store. When Clarke goes missing, his therapist Mary — played by Renate Reinsve from Sentimental Value — has no choice but to go after him into the endless, yellow-wallpapered nightmare of the Backrooms.

The film explores one of the internet's most iconic horror concepts: an infinite maze of empty office spaces, fluorescent lights, and the unsettling feeling that you're not alone. It's the kind of existential dread that A24 has built its reputation on — think Hereditary, The Witch, or Talk to Me, but born from Gen-Z internet culture.

Why Backrooms Could Be 2026's Horror Breakout

The horror landscape in 2026 has been dominated by everything from Obsession (the $750K indie that became the year's most profitable film) to Project Hail Mary's sci-fi dominance. But Backrooms taps into something different — a shared cultural nightmare that millions of people have experienced online. For anyone who's fallen down the Backrooms rabbit hole on YouTube, this theatrical adaptation is the real deal. (°ロ°)