There is a film called ‘Call of Cthulhu’ I have been watching which was produced in 2005. It is based on a short story written by somebody called Howard Phillips Lovecraft in 1928. H P Lovecraft was born on August 20, 1890 and died March 15, 1937. The film adaptation uses ‘Mythoscope’, a blend of vintage and modern film techniques intended to produce the look of a 1920s-era film, since it was filmed in black and white.
The story - In the story, a dying professor leaves his great-nephew a collection of documents pertaining to the Cthulhu Cult. The nephew begins to learn why the study of the cult so fascinated his grandfather. Bit-by-bit he begins piecing together the dread implications of his grandfather's inquiries, and soon he takes on investigating the Cthulhu cult as a crusade of his own. As he pieces together the dreadful and disturbing reality of the situation, his own sanity begins to crumble. In the end, he passes the torch to his psychiatrist, who in turn hears Cthulhu's call.