Just saw the movie last night with my husband... we both love the Coen brothers, too... all the movies that you named. But we were just discussing the same thing that you pointed out -- loved the movie, but were very disappointed with the ending... just didn't seem to live up to our expectations...
@landerson2012
I used the Apple iMovie program -- it gives you a lot of different options for making a slideshow movie (including different music, etc.).