It seems as though Kane Parsons has started a trend with his hit A24 movie Backrooms, as Weapons director Zach Cregger is working on a horror movie based on another online urban legend.
Cregger is in the process of writing a movie based on the creepypasta Siren Head alongside Brian Duffield, as reported by The Hollywood Reporter, and it's a pretty hot commodity. After five studios entered a multi-million-dollar bidding war over the project, Warner Bros. Pictures has come out on top, winning the underlying rights.