Watched a few scenes again... aw, everyone looks so goddamn tired in this movie. Even in the wedding scene, which should actually be a very happy moment, everyone is looking like they don't want to be there. And when we see the Enterprise the first time, the theme is played in a very sad and bitter way. No wonder that the movie bombed.
The Undiscovered Country was a send off movie, too. But it was energetic, the music was positive (dark, but positive). Not sad, not tired.