So in the book at least, they definitely both have dark hair
Quote:
So much alike were they, the sons of Elrond, that few could tell them apart: dark-haired, grey-eyed, and their faces elven-fair, clad alike in bright mail beneath their cloaks
RotK chapter two.
Furthermore, they were not in council in the book because they "were out upon errantry:for they rode often far afield with the Rangers of the North." However, I would not be surprised if pj put them into council in one of his little failed efforts to make the book purists feel better (e.g. saying Aragorn's age in TTT but being a year off

).
It would make sense to put them in the coronation scene, but I'm pretty sure that blond elf is either Glorfindel or Gildor. I'd like it to be Glorfindel because I love him, and I was really upset when Arwen stole his horse, but that's just me
