I think just Dagon was the only ok movie based on Lovecraft stories. Of course, i'm probably saying this more based on that hot spanish chick, but aside from that i felt it was ok.
Is 'Dagon' the one that is basically 'Shadow Over Innsmouth' but wuth a bunch of crazy Spaniards? I think I might have seen it late on Sci-Fi while in the throes of the stomach flu.
There's 'The Resurrected', which is an okay adaptation of The Case of Charles Dexter Ward. I think it would be all right to see - but not to buy at full price.