Final Trailers for 'Iron Lung' Post-Apocalyptic Submarine Indie Thriller

"You did test this thing, right?" "This IS the test." Markiplier is opening his indie sci-fi film creation soon called Iron Lung, inspired by the cult favorite indie video game of the same name. Iron Lung is one of the first feature films made by the YouTube personality "Markiplier", also known as Mark Fischbach, an indie creator known for his YouTube videos covering almost everything. This one is a strange sci-fi concept about a guy in a submarine exploring an "ocean of blood" in order to save humanity. In a post-apocalyptic future set after "The Quiet Rapture" event, a convict explores a blood ocean found on a desolate moon using a mini submarine called the "Iron Lung" to search for missing stars & planets. Iron Lung stars Mark Fischbach as the main convict, with Caroline Rose Kaplan, Seán McLoughlin, David Szymanski, Troy Baker, Elsie Lovelock, Isaac McKee. The original "iron lung" was a medical machine invented in the 1800s to help with breathing; this concept was then used to create an early underwater diving suit invented by Phillip Drinker & Louis Shaw in 1928. This sci-fi film is getting an actual small theatrical release starting January 2026 after being in development for years. Always cool to see shoestring budget indie flicks - check this out. // Continue Reading ›