Is there an Elvish one-drop rule?

Snerk, no.

... well, I dunno. It's implied that the half-elven prior to Earendil were treated by all as elvish: Dior inherited Thingol's throne, etc. But Elros and Elrond had to make a choice, as did Elrond's children, as to which people they would belong to. I wonder what would have happened if Arwen, Elrohir, or Elladan had had children before Elrond left Middle-Earth.

Dior inherited Thingol's throne

Thingol just sounds like a place-holder name to me, along the lines of whatchamcallit and thingy. I'm sure there's some deep linguistic significance to it, but my brain keeps picturing Tolkien going, "Elf names, elf names, more blasted elf names. What's a good elf name for that one with the throne? Heck, I'll just put in 'Thingol' until I have a chance to come up with something better." My train of thought for the naming of the Sea of Nurnen is similar.

I've started rereading the books, and I'm just about to the Battle of Helm's Deep in The Two Towers. Boy howdy, I'm liking them better this time through. Picturing various pretty pretty actors is only part of it. I don't think I was ready for Tolkien's writing style the first time around.

Thingol just sounds like a place-holder name to me

Thingol's original name was Olwe, I think, but he took a new one when he met Melian and decided to rule errr, memfault, Menegroth, Mindolluin, Me- me- me- Argh. Whatever. The big foresty place in the middle of the map.

Thingol just sounds like a place-holder name to me

"Thingol comes from sindacollo, 'grey cloak'", according to Arda.

Also:

In his early life, millennia before the beginning of the First Age, Thingol journeyed to Valinor with Ingwë and Finwë, and was returned to the Eldar who dwelt at Cuiviënen. From the travellers' reports of the Blessed Realm, many of the Elves marched westward across Middle-earth, seeking the land of the Valar, and the third and greatest host of the Elves, the Teleri, were led by Thingol and his brother Olwë.

As they neared the western coasts of Middle-earth, Thingol came upon Melian the Maia in the wood of Nan Elmoth. Long years passed, and at length he remained with Melian in Beleriand, though many of the Teleri passed West over the Great Sea. With Melian, Thingol founded the woodland realm of Doriath in the central regions of Beleriand, and there ruled the Sindar for many years. Thingol's doom came upon him when Beren brought him a Silmaril from Morgoth's crown as the bride-price of his daughter Lúthien. He summoned Dwarves from the Blue Mountains to set the jewel in the necklace Nauglamír, and the Dwarves became so enamoured of their work that they slew Thingol in his own treasury.

I'm scanning the movie quotes on IMDB, and I just noticed a capitalisation which makes me laugh:

Eomer: We cannot attain victory through strength of arms.
Aragorn: Not for ourselves, but we can give Frodo his chance if we keep Sauron's eye fixed upon us, and keep it blind to all else that moves.
Legolas: A Diversion.

It's probably a typo, but that's exactly how he says it. He had the worst lines.

It is, and he does. At least he looks more like an elf than a blacksmith.

We cannot obtain victory through strength of pants.

Hee.

I don't blame Orlando, since the lines the elves are given are generally weird, but his are weirdest. "A red sun rises, blood has been spilled this night. " Yeah, no. Viggo pulls off some stiff ones, but his aren't that bad, and he's also got a huge understated yet overwrought thing going with Aragorn.

True enough, I just have a knee jerk snarking reaction to Legolas, and a similar reaction to Bloom, though not in a really mean way.

Of course, What Ewan MacGregor managed to do with the fountain of terribleness they had him spewing in Send In The Clones is little short of awe inspiring. Dude was the most credible thing in that picture, IMO.

I love Ewan, I really do. But I can't watch another SW prologue. So I'll never know his brilliance therein.

I liked A Life Less Ordinary, fer crissakes.

It's Lothlorien that did it to him. Before they get there, he's speaking in complete sentences that say things other than statements of the complete obvious. But after they leave, it's all "The horses are restless. The men are quiet."