"Backrooms," an independent horror film, has surpassed $400 million globally at the box office, marking a remarkable achievement for a low-budget production. The film, which originally had a modest budget of just $10 million, has earned $197.5 million in the United States and $202.57 million internationally over nearly four months in theaters. This success makes it one of the highest-grossing horror films of all time and one of the most profitable movies in recent years, considering its relatively small production cost. The film follows a group of teenagers who find themselves trapped in a mysterious, seemingly endless maze of empty rooms, a setting that has become a popular internet meme and online horror challenge. Its success is particularly notable given that it was not backed by a major studio and relied heavily on word-of-mouth and online buzz to attract audiences. The film's eerie atmosphere and minimalist approach to storytelling resonated with viewers, contributing to its viral popularity. "Backrooms" is distributed by A24, an independent film studio known for supporting unconventional and creative projects. The film's box office success has not only solidified A24's reputation but also highlighted the growing influence of streaming platforms and social media in shaping movie audiences. The film's performance has sparked interest in potential sequels or spin-offs, though no official announcements have been made. The film's journey from a low-budget indie project to a global box office hit demonstrates the power of audience engagement and the evolving landscape of movie marketing. It also underscores the potential for horror films to thrive in the current cinematic environment, even without the backing of a major studio or a traditional theatrical release strategy.