I quickly watched the trailer for Call of Cthulhu
and didn't grab me. But perhaps need to give it a go. I agree stop-motion definitely way to go if you were making it as period film. One of things I've really really enjoyed in reading the stories is imagining how the f**k you'd do justice to them cinematically, especially the more 'psychedelic' ones like Kadath
and Silver Key
, or the elder cityscapes. I know cgi could
render them pretty accurately, but I always find something inherently artificial and dead in CG. But I could imagine visual stylists like Ridley Scott, or Powell & Pressburger at their peak, could pull them off with big enough soundstage.