Be warned! I am only sharing this movie here, because it is a shining and abhorrent example for the treatment Lovecraft’s work usually gets when it is turned into a movie (unless this movie is done by the HPLHS).
The Dunwich Horror TV movie of 2009 has very little to do with the original short story, the acting and effects are as bad as the plot and I hope everybody involved will be dragged away by a Dimensional Shambler.
Dimensional Shambler by Borjapindado
And now, here is the full dose of horror: