Markiplier's 'Iron Lung' has shattered the record for the most blood used in a movie, an achievement that is both impressive and deeply unsettling. This feat is all the more remarkable considering the film's modest budget and the fact that it was directed by a YouTuber making his feature film debut. The movie's premise, set entirely within a submarine descending into an ocean of blood, is already a unique and eerie concept. The sheer volume of blood used, an estimated 79,800 gallons, is a testament to the dedication and creativity of the crew behind the film. This record-breaking amount of blood is not just a spectacle but also a logistical challenge, requiring careful planning and execution. The process involved diluting the blood, which was initially very viscous, and calculating the precise volume based on the flow rate of the pumps. Markiplier's meticulous approach to this aspect of filmmaking highlights his commitment to crafting a visually stunning and immersive experience. The comparison with other bloody movies, such as 'Evil Dead' and 'It: Chapter Two', further emphasizes the scale of 'Iron Lung's' achievement. While these films used significant amounts of blood, 'Iron Lung' surpasses them all, creating a truly unique and record-breaking cinematic experience. The use of blood in 'Iron Lung' is not merely for shock value but to enhance the film's atmosphere and storytelling. The ocean of blood, a central element of the plot, adds to the sense of isolation and danger faced by the protagonist. This achievement is a testament to the power of independent filmmaking and the potential for YouTube creators to make a significant impact in the film industry. As Markiplier continues to push the boundaries of what's possible, 'Iron Lung' stands as a testament to his creativity and the endless possibilities in modern cinema.