Huey said:Again, I haven't seen the movie, so I may be way off base with my thoughts. I just remember reading the Hobbit first, and then the LOTR series, and always felt that while the stories were intertwined, you can tell Tolkien wrote them in a different frame of mind from one to the other. I can only hope that Jackson remained true to Tolkiens vision, but stretching a short story into a trilogy, I'm guessing he didn't.
The Hobbit was first published in 1937-38 primarily as a children's book. The LOTR trilogy was published in the three volumes over a period in 1954-57 a volume each year. It is not clear from waht I have read that when writing The Hobbit Tolkien had in mind the writing of the trilogy.
The Hobbit was written in the '30s while LOTR was largely written during WWII accounting for the different tones in the two, some say the dark tone of LOTR was a direct reflection of the war.
Had Jackson been true to The Hobbit I imagine it would have been a fun 2-3 hour single movie. As it it is it seems he bowed to the commercial pressure of die hard LOTR fans to produce a similar movie with The Hobbit. From Bats and Razz's comments seem like it was the wrong choice.