The highest-grossing film in A24 history, directed by Kane Parsons, brings its terrifying liminal labyrinth to home screens starting September 25, 2026.
LOS ANGELES, CA — September 25, 2026 — Step into the yellow wallpaper and endless fluorescent corridors, because A24’s historic box office phenomenon Backrooms is officially available to stream exclusively on HBO Max beginning today, Friday, September 25, 2026.
Directed by 20-year-old breakout filmmaker Kane Parsons and adapted from his immensely popular YouTube analog horror series, Backrooms defied all box office expectations upon its theatrical debut on May 29, 2026. Blasting past projections with an $81.2 million domestic opening weekend, the film went on to gross over $367 million worldwide, officially overtaking all previous titles to become the highest-grossing film in A24 studio history.
Co-starring Chiwetel Ejiofor as a troubled furniture-store owner who uncovers an impossible gateway in his basement, and Renate Reinsve as his therapist, Backrooms has been hailed as a masterclass in modern dread and a landmark achievement for internet folklore translated to the cinematic screen.
Following its exclusive streaming debut on HBO Max, the feature will also make its linear television debut on HBO on Saturday, September 26, 2026, at 8:00 p.m. ET.
Subscribers can experience the terrifying, reality-bending void immediately by logging into HBO Max.
A24 is the global entertainment company behind critically acclaimed and commercially groundbreaking film and television projects.
