Yes, yes, well Boromir died in TTT as well but I put that in FotR. So Shelob is at the end of TTT bookwise and is now going to be the beginning of RotK moviewise therefore taking the ingenius Empire Strikes Backesque cliffhanger and Sam's pivotal turning point in the triology and turning it into yet another small stupid monster they must fight before they face the super bad guy at the end in RotK. Go me.

Really, there is a lot more to it that that, but yes. I have taken lots of creative liscense here.