It's clear why some lines were changed or used by different speakers. I am irritated when "some fool of a scriptwriter"
makes pointless changes. The worst may be "Let us hunt some orc" when it could have been:
Gimli or Leggy: "Can we catch up to the orcs?"
Aragorn: "Come. We will make such a chase as shall be accounted a marvel among the Three Kindreds: Elves, Dwarves, and Men. Forth the Three Hunters."
Or even just: "Let's hunt Orc. Forth the Three Hunters!"
