I'm highly doubt that we, the audience, actually see monsters in this movie. I felt that those monsters look very out of place. Its like we suddenly dragged Naruto and company into an actual survival-horror movie.
That.... That is actually a good point.
I just want people to know that I really do believe these pics are real, at least for the most part. However I am still skeptical, and I am not going to be a jerk about like other people on this site. But keeping up good points like that, I maybe convinced otherwise. Though the reason why I am not freaking out about this is because, in the end, it doesn't matter what happens. It is just a manga, and everything will be fine the next day, whatever the outcome.