The reviews I've seen - both from critics and those who've seen the movie - have been pretty mixed so far, so I'm going to approach this one when I get to see it with an open mind and make up my own mind when I do.
But it's certainly never a good thing - and usually a sign of very poor writing - when the writers have to go online explaining important plot points in interviews after the fact! Imo, if it's not in the movie, they've messed it up.
The postscript does seem to give us a happy ending, though, I guess.
I, too, am looking forward to adding the third to my DVD collection though and watching all three back to back, at some point.
LabRat
