Only films I've seen that come close to Lovecraft spirit/atmosphere are Carpenter's In The Mouth of Madness and especially Cigarette Burns.
You don't mean to say you've never seen...
Wow, that's spooky
I was just thinking this very morning after started reading Call of Cthulhu
whether there were any other Lovecraftian films I might have seen. Two came to mind: Cloverfield
and The Mist
I decided , nah, more a bog-standard monster flick, and The Mist
seems plotwise more like Assault On Precinct 13
-with-nasties. But I did think, yeah, the actual design of the other things and their origin, the New England-y setting, and that bleak final scene and gargantuan creatures were very much in Lovecraft spirit
PS: Thanks for link, Australis
That made my morning