• Key takeaways:
  • Markiplier-distributed Iron Lung opened Jan. 30, 2026, with a $17.8M weekend.
  • Domestic gross sits at $26.8M; worldwide total reported at $30.26M.
  • Opened in 3,015 theaters; R-rated, 2 hr 5 min, horror–sci-fi.

Box Office Snapshot

Markiplier’s Iron Lung movie — listed on Box Office Mojo as distributed by Markiplier — opened in U.S. theaters on Jan. 30, 2026. The film posted a $17.8 million opening weekend across 3,015 locations and has reached a domestic total of $26.8 million. International returns bring the worldwide sum to about $30.26 million.

Opening weekend and early run

The film debuted with $9.0 million on Friday, Jan. 30, followed by $5.3 million on Saturday and $3.5 million on Sunday, producing the $17.8 million opening weekend. By the following Friday (Feb. 6) daily receipts slowed — a $2.0 million day was recorded as the movie moved into its second weekend.

Theater count and per-theater averages

Iron Lung opened in 3,015 theaters, with a reported per-theater average of about $2,985 on opening day and lower weekend averages afterward. The widest release remained at 3,015 venues, dropping slightly to 2,930 by the second weekend.

What is Iron Lung?

Iron Lung is a horror–sci-fi film set after a cataclysm called “The Quiet Rapture.” The story follows a convict who pilots a small submarine — the Iron Lung — across a bloodlike ocean on a desolate moon to search for missing stars and planets. The premise combines claustrophobic submarine horror with unsettling cosmic mystery.

Release details and classification

  • Distributor: Markiplier (listed by Box Office Mojo)
  • Original release date: Jan. 30, 2026
  • MPAA rating: R
  • Running time: 2 hours 5 minutes
  • Genres: Horror, Sci‑Fi

Daily box office trend and performance notes

Box Office Mojo’s daily breakdown shows a strong Friday opening followed by typical weekend drop-offs: from $9.0M (Friday) to $5.3M (Saturday) and $3.5M (Sunday). The title amassed $17.8M by the end of its first weekend and climbed to $26.8M domestically in the first week-plus. A steep second-week daily decline (reported at about -77.8% on one Friday) contributed to slower week-two totals.

Audiences familiar with the game-inspired atmosphere and bleak maritime visuals appeared to drive the opening turnout. The R rating and the film’s claustrophobic, genre-heavy premise likely shaped its core audience and box office trajectory.

What to watch next

Iron Lung’s early run gives it a modest theatrical footprint for a niche horror–sci‑fi release. Watch for weekend-by-weekend trends in box office reporting to see whether the title stabilizes in smaller theater counts or extends its run through specialty screenings and word‑of‑mouth. For full daily and weekend breakdowns, Box Office Mojo lists detailed tables and updated totals.

Image Referance: https://www.boxofficemojo.com/release/rl3918299137/