Well I didn`t mind the hobbits age one bit. Forgive me, but I actually thought it better.
Arwen coming to save the hobbits instead of Glorfindel didn`t bother me much either.
I also liked when Faramir took the ring to Osgiliath. Not in the book, but I liked it.
Something I didn`t like a whole lot was Faramir`s attitude toward Frodo and Sam at first. I liked the kind Faramir better, though they straightened it out later.