>>I am also glad they have already filmed all 3 movies.
>
>As far as I've read,, they haven't filmed them all. Got a link?

Last paragraph at http://www.lordoftherings.net/film/cast/ca_ewood_int.html

I can understand why they did all three at once. For one, you have the same cast of characters under the same contract for all 3 movies. Same technical crew, continuity, age of actors throughout the trilogy, etc.