Thank you for the comment and suggestions!
Initially I had cut out the scenes of Saruman's breeding stuff. But even this way there are still many references elsewhere to Saruman's "bred" army. And it isn't wholly contradictory to the book either.
I will go back and see if I can easily remove that line by Gandalf that you mentioned, because you are right.
And the scene containing the line by Grima that you mentioned is cut from my version. We don't see Saruman and Grima in any scenes together until after the Ents ravish Isengard. My reason for doing this is that it solves several little problems. Such scenes are where the Warg riders are sent out, Saruman scoffing at Aragorn (Does he even know about Aragorn in the books? I can't remember.), and it's not in the books anyway.
Also in my versions Saruman is his own independent player in the game, not a "puppet" of Sauron.
About your suggestion for ROTK that we remove the mystery of what Sauron will do, this would raise some trouble. In the movie, they want information of Saruon's plans from Saruman but don't get them because he is killed. So then Pippin accidentally gets some from the Palantir. And that is why they go to Minas Tirith, to get the heads up on Sauron's plan.
The only way I can think to bring this in better line with the book is to remove Gandalf saying that they got a glimpse of the enemy's plan, and maybe get rid of the "information" aspect from Saruman's final scene.
It seems like this part of the movie version is so tightly knit, there may not be anything I can do about it.
And as far as Aragorn challenging Sauron with the Palantir, I like it. But I will remove the part with Arwen. So yeah, I agree. However, seeing a physical Sauron in the Palantir is a good thing because it shows that he is not just an eye. In the movies, this is supposed to show that he can "now" take physical form, but for my version it could just be showing him in a physical form because mine never says that he isn't physical.
And I will remove anything else possible in order to lessen the portrayal of Sauron as an eye.
And recoloring the dead isn't something I can do, so they'll have to remain Pirates of the Carribean-ish.