The scouring of the shire is NOT in the third film from all I've heard.
It'll be Voronwe-style right after the big show
Anyway some thoughts:
The Faramir thing was the biggest mistake
I gues I just don't get it regarding the everyone's panties bunching over Faramir. He gave out harsh choices in the book and they were played well here. We only saw Faramir in battle situations so yeah he's going to be harsh. I think we'll see more of his 'true' character in the third film.
Not having Narsil already reforged makes no sense
But it also isn't a problem. It was little more than a plot device til the very end anyway (see the examples Aranuil quoted yonks back). It's classic movie setip/payoff: Put aside what you know about Aragorn and watch the films: there has been very little other than fleeting allusions to Aragorn's heritage. It's being downplayed til the third film where he'll basically go "fuck it yeah I'm King" and someone (Arwen) will appear with Anduril, give it some He-Man posing, Brego turns into Battlecat and hey nonny nonny.
Arguably that's a more dramatic and satisfying telling of that story cos for the most part the LotR books are pretty badly written. It definitely works better in movie terms IMO.
Actually, maybe even bigger than Faramir, is having Frodo expose the ring to the Nazgul at Osgiliath. Part of the whole strategy was Sauron NOT knowing who had the ring or where they were. Towards the end Sauron thought Aragorn had it and that left his attention gazing outwards instead of in the lands of Mordor. Now he knows exactly where it is and who has it
So the last thing the Nazgul knew was that it was in the hands of a Hobbit who was being taken to Gondor. Still plenty of room for confusion on the part of Mr Eyeball. Again it was a dramatic explanation of the ring's power and works in movie terms. Plus I don't actually remember Sauron ever thinking Aragorn had the ring but I do remember him thinking Pippin had it. My only memory of why Sauron's eyes were on Aragorn was because of the massive fucking army right behinid him
Anyway I don't mean to necessarily pick on anyone in particular here but I think a lot of the nitpicking is pretty silly especially about Faramir who sems to be everyone's biggest hero and I just don't care

I guess I'm less interested in treating the original texts as if they were scripture because as much as I like he story the books are a pretty bloody unpleasant read in places. Probably because it was written by an academic not a novelist.