Andy, I couldn't agree with you more. Rented the BD of the film from Blockbuster (Weinstein's exclusive video retailer) and not having seen your previous posts was really looking forward to another Darabont adaptation of King.
Boy, what a f***ed up ending!

This is the equivilent of what King went through when his novel "Cujo" first came out and a LOT of his fans castigated him for the way he ended it (as opposed to the happier ending of the film adaptation)-there was no reason whatsoever for the main character to do what he did and he certainly did not do something in the body of the film that made him deserve it. If he had done something horrible to his wife (an affair or some dirty business dealings that caused them financial hardship) or child at the beginning of the story that might have justified the ending, but for the life of me I cannot understand why Darabont did this. The ending of the novella was not perfect but at least it made dramatic sense, and I have to give Darabont credit for one shot that I was really hoping he would pull off-in the story the character tells of watching a creature so incredibly huge that there was no way for him to describe it accurately, and there is a shot of this gargantuan creature in the mist that actually gets it right.
For me, the ending of this film would be like having SHAWSHANK end with Morgan Freeman walking up to Tim Robbins on the beach and either shooting him in the head or performing some sex act on him-it just did not fit the character or the story. The Tom Hanks character in THE GREEN MILE pays a price for "killing one of God's miracles," but this was just plain mean and so off-base. And I even liked a great deal of THE MAJESTIC!
And your feelings about the Harden character were dead on-my wife was even shouting at the screen "would someone just shoot this cow?!" For the budget that he had, Darabont actually made a fairly well-crafted film, and it was nice to see some of his stock company (Bill Sadler, Jeffrey DeMunn) working with him again, but having met the man on a number of occasions and really enjoying chatting with him, I have to admit that I would probably have to tell him that up to the last two minutes he did a great job then he basically s**t on his audience.
No surprise that it disappeared rather quickly from theaters-what a downer!
