Based on David Szymanski's sci-fi submarine simulation, the YouTuber's debut film screams possibility.
Iron Lung, YouTuber Markiplier's horror film, has already made multiples of its low budget in just 24 hours of its release.
YouTube star Markiplier wrote, directed and acts in the horror video game adaptation "Iron Lung," which has a massive screen count for an indie film.
Markiplier shows a lot of promise as a filmmaker with Iron Lung, but its sluggish pacing bogs it down a few notches.
Markiplier's 'Iron Lung' could turn out to be a sleeper hit, as the horror video game adaptation has landed a near-perfect Rotten Tomatoes score.