🎞️ A24 Box Office History: Every Record They've Set

Kane Parsons was nineteen when A24 signed him — no feature credits, just a viral YouTube found-footage horror series he'd built on his own. That signing made him the youngest filmmaker the studio has ever put under contract, and in 2026 his film, Backrooms, is the reason A24's whole record book got rewritten: $300 million and counting worldwide, the studio's first release ever to clear the $200 million mark, on the back of an $81.4 million domestic opening weekend that's the biggest in A24's history. Everything here used to be the ceiling.

A24's highest-grossing movies, ranked

Read that gap column top to bottom and a pattern shows up that a flat gross list hides. Talk to Me barely cleared Hereditary, a 2% edge that's practically a rounding error. Then the jumps get bigger every time the record changes hands: 38%, then 50%, then 57% and still rising, because Backrooms hasn't finished its run. Is Backrooms a fluke? Not if you trust that curve. I'd bet on the curve over the outlier explanation every time. It reads like a studio closing in on something for years, not stumbling into one freak hit.

How Backrooms got there

Nineteen. No prior features. A viral YouTube series was the entire directing résumé, and I don't think A24 makes this bet on a filmmaker with a conventional one. Parsons adapted his own found-footage horror property for the screen. If you've spent any time on horror YouTube in the last few years, you've probably watched some version of the original Backrooms footage without ever clocking that A24 owned the rights to turn it into a movie.

The opening weekend is where the numbers get genuinely strange. Backrooms pulled $81.4 million domestic in three days, a record for the studio outright and one of the biggest opening weekends of the year across any studio, and combined with its international haul, crossed $100 million worldwide in that same opening weekend alone, a first for A24. Do the subtraction and international theaters kicked in at least $18.6 million of that in the first three days, a figure A24 has never touched before with any release, domestic or international. Run that split the other way and international kicked in roughly 23 cents for every domestic dollar in that first weekend. Put the domestic number next to the old record a different way: $81.4 million in one weekend is 42.6% of what Marty Supreme grossed worldwide across its entire theatrical run. That's nearly a career total in one weekend.

Backrooms is still climbing, ten weeks after release.

Most horror wide releases have stopped tracking by then. Backrooms hasn't. Per our 2026 box office chart, it's still charting well past that mark, and the long tail is most of how a $100 million-plus opener turns into a $300 million-plus total.

Subtract that opening weekend from the running total and Backrooms added roughly $200 million more over the following weeks, somewhere near $20 million a week, long after a typical horror opener has gone quiet at the box office. Critics didn't fight the trend either. Rotten Tomatoes has it at 88% Certified Fresh. Horror movies that open this big usually take a beating from critics on the way up. This one didn't.

The domestic-international split, and why "$300M+" isn't sloppy math

That implied column matters more than it looks. I think the "$300M+" framing gets misread as fuzzy math when it's closer to the opposite — it's the most honest number A24 could publish mid-run. A24 has historically been a domestic-first, awards-adjacent distributor; international rollout timing was never central to the business. A worldwide opening split this evenly, this early, says the international release was built into the plan from day one, not bolted on after a domestic hit proved itself.

Studios report "$300M+" instead of a hard number mid-run because a running total isn't a final one, and domestic gross measures something different from worldwide gross entirely. That's standard practice across the industry for any film still in theaters — precise-to-the-dollar totals get published once a run ends, not while a film is still adding to its own total. For the mechanics of both, our explainer on how box office numbers get calculated and our breakdown of domestic versus worldwide grosses cover the rest.

From prestige darling to horror franchise machine

A24 built its early slate like a boutique wine list: a handful of hand-picked pours a year, priced for people who already knew what they wanted. Backrooms is what happens when that same list suddenly gets ordered by the case.

Founded in 2012 on festival prestige and modest-budget dramas, A24 wasn't built to fill multiplexes. Hereditary changed that math in 2018. Its $90.4 million was the first real proof that A24 horror specifically could break past the arthouse crowd its dramas were built for and into a genuinely wide commercial audience. I'd call that the bigger inflection point in this whole story, not Backrooms — everything after Hereditary is execution on a thesis it already proved.

Talk to Me, the directorial debut of twins Danny and Michael Philippou, backed that up at $92.2 million. Civil War pushed the number to $127.3 million in one of the studio's most successful 2024 releases. Marty Supreme, with Timothée Chalamet, took it to $191 million and briefly looked like the new ceiling. Backrooms blew through it. Run the full lifetime total against Hereditary's original $90.4 million and Backrooms already sits at 3.3 times the film that started this climb, with weeks still left to add to that total since the run isn't over.

Found-footage horror has a long, cheap history in American film, which is part of the appeal for any distributor watching costs. What's unusual here is the source: a YouTube series that already had an audience before A24 spent a dollar marketing it. That's a different kind of acquisition than optioning a festival darling off the Sundance slate, and it's the piece of this story most likely to repeat.

Eight years passed between Hereditary and Backrooms, across four titles, with a gap column that only ever widens. This is a distributor that learned to scale its horror slate commercially while its prestige-drama identity stayed exactly where it was everywhere else in the catalog.

Does this make A24 a major studio now?

No. A24 spent over a decade turning small budgets into outsized grosses instead of matching major-studio spend dollar for dollar, which is close to the opposite of the strategy that makes plenty of nine-figure tentpoles flop at the box office when the built-in audience doesn't show up.

Backrooms doesn't abandon that model. It's still a horror film with a specific, internet-native origin story, still cheaper to make than the wide releases coming out of Burbank and Universal City. What it proves is that the model has a ceiling far higher than anyone had tested. I'd push back on any read that treats Backrooms as A24 abandoning what built it.

None of this required a marketing budget that matches the majors. A film that started life as a free YouTube series carries a different cost basis than one built around movie stars and franchise IP, and that's the actual point of the model. A24 doesn't need $300 million to look enormous; it needs a gross that's enormous relative to what it spent to get there.

Next to a studio the size of Disney's animation and live-action business, A24's whole 2026 slate might not add up to one Marvel opening weekend. A24 isn't trying to compete on that axis, and that's the point — the studio's leverage was never volume. For a completely different kind of consistency, one actor sustaining box office success across decades and genres rather than one studio catching lightning once, our Tom Cruise box office track record is the better read.

Our score: 4.5/5

That score is about box office consistency and record-setting impact specifically, not a critical grade on A24's slate as filmmaking. On that narrower measure, hit rate and the willingness to keep testing a bigger ceiling, 4.5 is earned. I'd have docked it further if the studio's older catalog didn't already back this up so clearly. A single outlier release wouldn't move this number. Four straight records in a row does.

The number to watch from here isn't $300 million. It's whether A24 can hit that number again without turning into the kind of studio it spent a decade proving it didn't have to be.

Methodology

Figures combine studio-reported numbers with industry-tracked grosses from Deadline, Variety and The Hollywood Reporter, current as of this writing. Backrooms' worldwide total runs as "$300M+" rather than a fixed figure because the film is still in active release and its total keeps moving. We'll swap in a final number once the theatrical run closes out.