EXCLUSIVE: Backrooms director and cast break down turning a viral webseries into one of A24’s most unsettling horror films

A24’s Backrooms turns Kane Parsons’ viral internet horror into a feature-length film.

The adaptation shifts from online mythmaking to a more character-driven story about isolation, memory, and therapy.

Renate Reinsve and Chiwetel Ejiofor lead the cast in a psychological horror take on liminal dread.

The film reflects a growing trend of creators moving from web shorts to theatrical horror.