Baraka_Guru

Spoiler: In Lovecraft's "The Call of Cthulhu," Cthulhu isn't awoken until the end.

I don't think this film is a direct interpretation of Lovecraft's story "The Call of Cthulhu." (Cthulhu makes other appearances elsewhere in his fiction.) It might be based on the symbolic idea. Here's the story's first line:

The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance amidst the black seas of infinity; and it was not meant that we should stray far.

You don't need a tentacled-faced monster to make a film based on that. (But, sure, it would be cool.) This trailer showed that the film is possible doing just that.

__________________
Knowing that death is certain and that the time of death is uncertain, what's the most important thing?
—Bhikkhuni Pema Chödrön

Humankind cannot bear very much reality.
—From "Burnt Norton," Four Quartets (1936), T. S. Eliot