Three film students go to Burkittsville, Maryland to make a documentary film on the infamous Blair Witch legend. They go missing, but a year later their footage is found in a bag inexplicably buried in an abandoned 100-year-old house. The footage shows director Heather Donahue, her cameraman Joshua Leonard and soundman Michael Williams fleeing for their lives from an unseen menace.The Blair Witch Project has a lot of similarity to various mythos stories including perhaps "Dreams in the Witch House." But look at Karl Edward Wagner's "Sticks," (found in Tales of the Cthulhu Mythos) where a pulp writer decides to go fishing in the woods of upstate New York were he finds:

The lashed-together framework of sticks jutted from a small cairn alongside the stream. Colin Leverett studied it in perplexment — half a dozen odd lengths of branch, wired together at cross angles for no fathomable purpose. It reminded him unpleasantly of some bizarre crucifix, and he wondered what might lie beneath the cairn.

Another parallel can be seen with the three protagonists seem to be going in circles unable to find their way out. Author J. Ramsey Campbell (our guest of honor in 2006) used this supernatural loss of direction in Lovecraftian pastiches like "The Church in High Street":

I ran blindly, wildly — but the hills of the open country came no nearer — and suddenly, horribly, I recognized the unlit intersections and dilapidated gables of Cloth Street — which should have been far behind me, on the other side of the river — and in a moment I found myself again in High Street.

In "Notebook" from Tales of the Cthulhu Mythos, we find that Willie Osborne's has a similar problem:

I kep running and I kep screaming forever, through the woods and the storm, away from that hill and that alter, and then all at once I knew where I was and I was back here at the farmhouse. Yes, that's what I'd done — run in a circle and come back.

So come watch Blair Witch again and discuss the Mythos elements afterward.