I disagree most strongly with you dearest Brego, I felt nauseated and disturbed in my heart when I saw that scene. I agree that the elves were tactile, at least those who were smiths and artisans, that is a given. However Tolkien was a stickler for proper protocol in real life and I believe that the high elves and those even higher would have observed absolute and proper protocol in all situations even unto death. That gesture was only proper if between say deeply attached brother and sister , but probably husband and wife alone. And when you remember that during Bilbo Baggin's stay at Imladris when there were banquets the elves usually did not touch a bite that was set before them for hours and hours, preferring to listen intently to the lays and stories of heroic deeds. No I think that was highly improper and quite frankly unless proved otherwise when the movie is seen in entirety, obscene and for the very reason the high elves, Maia and so on were so aware of high thought and protocol that a breach was shocking, In my opinion. And as I have noted on another thread, the fact that the professor was deeply disturbed about women beginning to wear formal trowsers to church and other things that would seem so minor to his peers, so too I think he would disapprove heartily upon seeing that scene. And his opinion would be my only guide line.