Dune part two.
Petulant Chani, storming off into the desert at the end in a huff was bad. I sense the hand of Brian Herbert or Kevin J Anderson in that. For anyone that doesn't know, they wrote the sequels and the prequels.
No Young Alia freaking out the Fremen and killing wounded invaders. Margot Fenring without her husband, the royal assassin.
Paul's comment to start off the holy war and turning Stilgar into a raving religious nut job.
The Emperor was to put it plainly a pussy who the Bene Gesserit conned into destroying house Atredies.
The movies ran for a total of 321 minutes, and in that time they only progressed about 8 months instead of the years in the books, I think leaving out a chunk of character, plot development.
Waiting for Paul to drink the water of life before learning he was half Harkonnen instead of working it out himself, lessens the intended intelligence of the character. He could spot that his mother was pregnant, but not that she was Harkonnen?
On the plus side, the combat was good and fit with the books.
I was thinking throughout the movie that it was too bad, right until the end. They took one hell of a left turn right at the end.
The people I have talked to about the movie, all had similar thoughts. Good story, ruined by an at best mediocre adaption.