• Markiplier’s self-financed feature adaptation of the video game Iron Lung earned $3.5M in Thursday night previews.
  • Iron Lung had $6M in presales and is projected to open around $9M–$10M for the weekend.
  • Sam Raimi’s Send Help posted $2.2M in previews; audience reactions to Iron Lung praise its claustrophobic effects and design.

H2: Strong preview showing for indie horror

Markiplier’s self-financed feature take on the indie video game Iron Lung registered a breakout start at the box office, earning $3.5 million in Thursday night previews, Deadline reports. The film entered the weekend with $6 million in presales and is currently projected to open in the $9 million to $10 million range.

H3: What the numbers mean

For a largely self-funded project adapted from a small horror game, Iron Lung’s preview haul and presales are significant. The results suggest strong fan engagement and positive word-of-mouth heading into the opening weekend. By comparison, Sam Raimi’s new genre film Send Help posted $2.2 million in previews the same night.

H3: Audience reaction and social buzz

Audience comments shared on social media highlighted the film’s physical effects, claustrophobic atmosphere and faithfulness to the game’s slow-burn tone. One commenter noted, “The fact that they actually built the sub on a motion platform and tossed him around inside like a ragdoll sold me,” praising the tangible effects and weight of each impact. Others called the film “suspenseful,” “claustrophobic,” and a faithful expansion of the game’s cosmic and body-horror elements.

Several fans also praised Markiplier’s hands-on approach. Viewers mentioned the emotional credits and his choice to appear under his YouTube persona in the billing before revealing his real name, Mark Fischbach, in later credit listings.

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H4: Release outlook

With $6 million already secured in presales, industry watchers expect Iron Lung to post a strong limited-to-wide weekend, especially given its modest budget and concentrated fanbase. The film’s success may further validate fan-driven and creator-funded projects that transition from gaming or online platforms to theatrical releases.

H4: Why this matters

Iron Lung’s performance underscores how niche IP and creator-led films can compete with studio releases when they tap built-in audiences. The film’s practical effects and single-location tension resonated with early viewers, fueling social media buzz that helped drive presales.

For now, Iron Lung moves forward into its opening weekend buoyed by strong early numbers and positive audience reaction. Keep an eye on full weekend tallies for confirmation of its final opening figure.

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