On Dracula (1931): Lovecraft was bored by the "dreariness" and walked out.
On Frankenstein (1931): "It made him both drowse and seethe at the insult to Shelley’s original. “Ugh!” he wrote."
See the full article, "HPL at the movies," by David Haden at his Tentaclii: H.P. Lovecraft blog here.
I had been looking forward to this. Boy was I wrong. It is a melange of trite horror tropes and
twenty-first-century family issues grafted onto a few plot-elements
lifted from H.P. Lovecraft's story, to which is added over-the-top bad
acting (Nicolas Cage, especially), to produce a decidedly B-grade
horror film. A few directorial hand-waves pass over a large number of
unexplained and irrational aspects of the plot. The script is
appallingly bad, and the whole is dull and pointless. Save nearly two
hours of your life and avoid this movie.