Kelcie Mattson is a Senior Features author at Collider. Based in the Midwest, she also contributes Lists, reviews, and television recaps. A lifelong fan of niche sci-fi, epic fantasy, Final Girl ...

While the world’s most glamorous film festival rages on with red carpets, standing ovations, and desperate distribution deals, behind closed doors, a monstrous new movie is stirring. And it has J.J.