Watched this on Shudder last night. Great, creepy setup, but I thought the movie lost a bit of steam as it dragged along. I agree that the premise could be easily adapted for an AS&SH adventure. Along these lines I've long had dreams of adapting parts of the Call of Cthulhu adventures "Beyond the Mountains of Madness" for a fantasy setting and seeing this film brings this to mind. I'll soon be getting my copy of Realms of Crawling Chaos for Labyrinth Lord, so that may add more potential ideas. I'm thinking this can fit somewhere into my Dark Treasury campaign arc. So many ideas, so little time...
"Could you fancy me as a pirate bold? Or a longship Viking warrior with the old gods on his side? Well, I'm an inshore man and I'm nobody's hero. But I'll make you tight for a windy night and a dark ride."--Jethro Tull