[Loser]

Originally posted by Imperator Fyron:
The Aragorn falling into river scene was not part of the book, and did not really add anything at all to the story that I could determine.

This separated Aragorn off from the rest of the group so that he could see the approaching army. To get a real sense of the numbers, and of urgency, they needed him to find them while he was off by himself. In the extended Version it also highlights his relationship with that horse.

At least, I think that's what it's about.