Many of the names are matched with faces on the
Quintessential Website for Lord of the Rings images.
Another key change was that Elrond said everyone had been summoned. (Denethor confirmed this in TTT:EE by saying Elrond was calling a council.) Yet in FotR (book), Elrond stated that they were not summoned by any Elf, but rather came together by fate/destiny/providence.
I agree with
Finduilas, I don't like how they shortened it, though I expected them to shorten it. When I first started the books, that chapter bogged me down for a while. Now, it's one of my favorites because it takes all of the history of the Ring and binds it together, and contains so much of the other mythology and lore of Middle-Earth in it.
I too agree that it was kind of silly to erupt in a big fight like they did.