Just got put of the theater and...
That movie was amazing! Markiplier did such a good job from his acting, to the direction, and even the story! If I had to sum it up without spoilers, I'd say that Iron Lung is as faithful of an adaptation a film can get in my opinion. It had hidden references to the game that one would need to pay attention to find, suspenseful moments that makes you question the reality in the film. Overall, I'd say his first ever theatrical debut was a successful one. I enjoyed it deeply.
Can I just talk about how good Mark's acting was BTW? I mean, he pretty much disappeared in his role as Simon/Convict. When he was angry, you could really buy the rage he showed. There's a scene in it that you could really buy his desperation for freedom, and Mark kills it! And lastly, there's a scene at the end (i won't spoil) where Simon gets extremely missed and Mark sells the fury and anger to the point that I can't stop quoting him.
If you have a chance to see it and your a fan of either cosmic horror, Markiplier, or the game Iron Lung, then go give it a watch.