The Lake House is quite enchanting. It's got a strong story and the cinematography is beautiful. I would highly recommend it, except be sure to arm yourself with tissues because the ending is so perfectly happy you may bawl your eyes out. :D

There's been a lot of that on my flist, too. I don't like to buy into that, because to me H/D has infinite potential. The AU options -- why, we've barely scratched the surface. I don't think the fandom will die out any time soon. And it is my firm belief that ALL FANDOMS REQUIRE MULTIPLE HARLEQUINISED VERSIONS OF STORIES. Just sayin'. XP H/D will always be one of the most interesting pairings I've come across.