Box Office Mojo's running worldwide total for Backrooms stood at about $390m on 10 August — $197.5m domestic through 9 August — and was still $393.2m by mid-August, inside the band.
The worldwide-total market resolves on Box Office Mojo's cumulative worldwide gross for Backrooms as of 23:59 ET on 10 Aug 2026. If reporting services disagree on grosses, Box Office Mojo is the source of truth.
We looked for cheap horror films that became huge hits, and at how much they made in the end. We found five. Films like these earn many times what they cost, but then their takings fall faster than almost any other kind of film. The opening weekend makes the news. The weeks after it decide the final total.