Director Adam Green lies about the actors' breath

Adam Green is a liar. He made it a huge selling point that what you see in the film is "real," particularly the intense cold the actors experience. Many people have called out the fact that some scenes showed the actors' breath visible in the cold air, while in other scenes, their breath was not visible. In these no-breath-visible scenes, Adam insists that it was so cold that the actors' body temperatures dropped so significantly that their breath ceased to be visible. This is scientifically preposterous. If their body temperature was so low that you couldn't see their breath anymore, they would be dead. Adam Green lies.

YMS did a great job of summarizing just how disingenuous he is. https://www.youtube.com/watch?v=z83IyQBExn0