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In a post-apocalyptic future where an event known as "The Quiet Rapture" caused all known stars and habitable planets in the universe to disappear, a convict is sent to search an ocean of blood discovered on a desolate moon, using a small submarine nicknamed the "Iron Lung".
Critic Consensus
Critical reception for Iron Lung is mixed, with scores ranging widely and opinion divided along clear lines. Supporters praise its atmospheric, claustrophobic tension and the audacity of its creative ambitions, with several noting it as a credible debut for filmmaker Mark Fischbach. Detractors, however, repeatedly cite leaden pacing and an overextended running time as significant problems, with some arguing the low-budget production lacks the visual or narrative substance to sustain its concept across a feature runtime.
5 rated reviews · 3 positive · 2 negative
AI-generated summary of 7 critic reviews · may contain errors
Report inaccuracyCritic Reviews (7)
Updated““Iron Lung” is audacious and at times astonishingly boring. Still, it feels more enthusiastic and celebratory than many blockbuster adaptations built on safer math. Insisting that the mission is bigger than any one person, including its creator, the film opens space for more daring, messy attempts to follow. For indie cinema, that alone may be worth the ordeal… if not, the gallons of blood.”Read full review ↗
“Iron Lung is distinguished by the same creative ambitions that ultimately make its ending seem like a watery solution after such an airtight setup. The film is an undeniable breakthrough for the filmmaker, even if he's got both too much chutzpah and too little experience to stick such a tough landing. Iron Lung's not a flawless debut, but it has a bright future as a cult classic.”Read full review ↗
“Iron Lung is a stripped-down sci-fi horror film that uses isolation, sound, and suggestion to create a claustrophobic indie horror experience that thrives on tension more than payoff.”Read full review ↗
“Iron Lung is an interesting little concept, smeared too thin across a far-too-long running time. The pacing throughout is so leaden and monotonous the effect is frankly soporific, and despite Fischbach's arguably admirable intent and exertion, this low-budget sci-fi horror makes Event Horizon look like 2001: A Space Odyssey.”Read full review ↗
“Hopes that Iron Lung is a new Dark Star are soon sunk by the depressive tone, leaden pacing and near-total absence of spectacle; this is basically a radio-play script that insistently has to tell, because this barebones production has nothing much to show.”Read full review ↗
“The debut feature film of writer and director Mark Fischbach, better known to the internet at large as Markiplier, is as surprising as it is atmospheric. It's in the very clear coordination and trust he has with his cast and crew. In a way, the film itself is a mirror of the submersible his character is forced to pilot: flawed, surely, but strong enough to complete its mission and deliver an exceptional experience.”Read full review ↗
“'Iron Lung' from YouTube celebrity Markiplier flatters his directing and acting skills, but the claustrophobic sci-fi horror tale itself wears thin.”Read full review ↗
Cast & Crew
Cast
- Mark Fischbach · Simon
- Caroline Kaplan · Ava
- Troy Baker · David
- Elsie Lovelock · SM-8 Research Lead / The Speaker (voice)
- Elle LaMont · SM-8 Research Assistant / The Whisper (voice)
- Mick Lauer · The Guy Who Told You to Cross the Wires (voice)
- Dave Pettitt · The Father
- Holt Boggs · Eden Soldier
- Isaac McKee · Young Simon
- Roman Parsons Crow · Child of Eden
- River Van Coleman Crow · Child of Eden
- Townes Blaine Crow · Child of Eden
- Asher Wagh · Child of Eden
- Kazuki Jalal · Child of Eden
- Alanah Pearce · A Familiar Voice (voice)
- Seán McLoughlin · Jack
- David Szymanski · David Szymanski
- Danielle Evon Ploeger · Tow Ship Pilot
- Rahul Kohli · Additional Voices (voice)
- Ethan Nestor · Additional Voices (voice)
Director
Writer
Music
Cinematography
Editing
Art Director
Costume Design
Casting
Sound
Producer
Executive Producer
Details
- Release Date
- 30 January 2026
- Runtime
- 2h 5m
- Language
- English
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