[dznygrl]

My take on the reason Disney dumped it is this: obviously Prince Caspian didn't do as well (and like ddoll, I wasn't exactly held at rapt attention myself )...and I think they probably realized that from here on out, it is going to be more difficult to hold the attention of those who haven't read the books. Yes, Edmund and Lucy are back, but Peter and Susan are gone and now there is the caveat of introducing two new children. Anyone who has read the books will accept that fact without question, but for the rest of the viewers, it's like releasing a sequel with a different person playing the main character. It just loses something.

Ah who am I kidding, they probably just saw the lower box office numbers and said "forget it". But I like to try and give them more credit than that...

[VinylmationMan]

Thats gotta hurt for the cast....

[Cynsayshi]

I think part of the reason PC didn't do as well is because they strayed too far from the original story to "make it more relevant." While the story probably did need some tightening up, the fairly drastic changes that were made to the original material meant that at least some of the reader fanbase, which is critical for this type of movie, was immediately alienated.
An example of this type of change was adding the White Witch into the bunker scene. It was obviously added for a "star recognition" moment, but was not needed to progress the story, and offended the book fans.
I'm a little more flexible on this than I used to be (still have problems with 101 Dalmations on this point), but there were just too many little things that added up for me.
That said, I will still go see VODT when it's out, because even with the plot changes (not a spoiler, just an assumption), it's still a better plot than much of the drivel that comes out of Hollywood these days.