Headstones for people lost at sea? Spoilers....
Aside from the accent problems, I thought the big "reveal" when Claire discovers that the story is actually true was a little heavy handed. Why would there be headstones for people who were lost at sea? There's no body to bury, so what's the point? Also, the church and it's contents were pretty pristine for having been abandoned for 50 years. Not to mention the fact that an old wooden building like that would have burned to the ground during the fire.
Otherwise, I thought it was a pretty enjoyable film. It definitely held my interest all the way until the end. The overall mood of the film reminded me a little of The Secret of Roan Inish, although that's a much better movie IMO.
I need my 1987 DG20 Casio electric guitar set to mandolin, yeah...