Backrooms is on track to overtake the $191.2 million global haul set by Marty Supreme and become A24’s highest-grossing movie worldwide this weekend or by Monday, reaching that mark in only its first 10 or 11 days in release.
Box office estimates show Backrooms heading into the weekend with a global total expected to be north of $185 million by Sunday, a domestic running cume forecast at $134.8 million by tomorrow and a foreign total that stood at $50.3 million as of yesterday. The title pulled in an estimated $25.7 million in its second North American weekend.
The numbers matter because Backrooms reached a studio milestone at unusually high speed: it became A24’s top earner domestically in its first six days, and now it is positioned to top A24’s worldwide list faster than any recent release. The film’s campaign has the hallmarks of a viral-born, fan-front loaded property — low production cost, quick saturation, big opening-week mechanics.
That makes the raw totals striking: Backrooms cost under $10 million and was co-financed with Chernin Entertainment while also being produced by Blumhouse-Atomic Monster, 21 Laps and Phobos. It stars Oscar nominees Chiwetel Ejiofor and Renate Reinsve and has pushed the envelope on how rapidly a modestly budgeted genre entry can scale worldwide.
The moment is sharper because Backrooms is setting this record despite a steep 68% drop in North America in its second frame. Nearly 81% of the second-weekend audience was under 35 — a demographic that delivers strong opening-week returns but often produces quick falloff. Put another way: the film’s velocity so far has been driven by a young, intensely engaged crowd, which helps explain the early record chase even as week-to-week retention softens.
Those mechanics mirror how Marty Supreme climbed to $191.2 million: it unseated Everything Everywhere All at Once (which sits at $147.9 million worldwide) after 53 days. Backrooms has moved more quickly on the domestic front, and is now on the brink of claiming the overall global crown in a fraction of the time. Steven Spielberg’s shorthand reaction — "I Just Applaud Them" — captures how industry veterans are framing the feat: creative and commercial success on a tight budget.
The wider summer box office remains crowded with big runs that provide context for Backrooms’s climb. Lionsgate’s Michael will cross $888 million worldwide this weekend and become that studio’s highest-grossing title in history, and Focus Features’ Obsession is expected to top $151 million by tomorrow and is already the label’s strongest stateside release; if Obsession continues past $194.6 million it will outstrip Downton Abbey as Focus’s pure-label global leader. For more on those runs see our Michael coverage at and our Obsession box office piece at broader box office and scores context is here:
The essential question left after the weekend’s tallies is not whether Backrooms will pass Marty Supreme — current projections point to that outcome by Monday — but how far beyond $191.2 million it can travel. The film’s early success is undeniable, but its heavy youth skew and the 68% second-weekend decline expose a fragile tail. If Backrooms stabilizes overseas or finds a second wind in older audiences, the global total could keep climbing well past the record; if the current falloff continues, the film may simply notch the studio high and plateau.
Given the pacing — early domestic dominance, $134.8 million expected stateside by tomorrow and $50.3 million abroad already banked — it is reasonable to conclude Backrooms will eclipse Marty Supreme’s $191.2 million by Monday. The sharper story to watch is whether A24’s newest global champ turns a rapid, low-cost sprint into a longer haul, or whether this will stand as a headline-fast milestone born of intense early fandom.
