It's entirely possible that sending the audience out feeling lousy was intentional

The movie's neither hopeful in contrived ways, nor hopeless in different contrived ways. Somehow it manages to be wonderful

Although I seem to have had higher expectations than I thought, the movie is super entertaining.

Very good movie overall, highly recommended. Most of the negative reviews don't have any merit and are all pollitically based. Give this movie a chance at least, and it might give you a different perspective.