The Iron Lung box office collection has become one of the biggest success stories of 2026, proving that independent creator-led films can compete with major studio releases. Directed by popular YouTuber Mark “Markiplier” Fischbach, the sci-fi horror movie has earned massive profits in less than three weeks of release.
Since hitting theaters on January 30, 2026, Iron Lung has collected around $38.2 million in North America and an additional $9.3 million from international markets, pushing its worldwide total to about $47.5 million. Made on a small production budget of only $3 million, the film has already earned more than 15 times its cost, making it one of the most profitable movies of the year so far.
The film shocked analysts by opening at number two with a strong $17.8 million debut weekend. What started as a limited release quickly expanded to thousands of screens due to overwhelming fan demand. Even during the Valentine’s Day weekend, the movie added another $3.5 million domestically, showing impressive staying power for a horror title.
Industry experts are calling the film’s success the “Markiplier effect,” as the creator handled directing, writing, and starring duties while bypassing traditional studio systems. With the Iron Lung box office collection expected to finish between $50 million and $55 million worldwide, the indie horror hit continues to rewrite box office expectations.
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