Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Starts strong, but a rather depressing story-line.

Beginning with one of the happiest, and most uplifting songs I've ever heard in my life, titled "Life's A Happy Song," this film was headed in all the right directions. Instead, it takes a dark and rather depressing turn, doing for the Muppets what "Babe: Pig in the City" did for that franchise.Jason Segel and Amy Adams are very likable as the main actors, and the new "whistling" Muppet is great, but it would have been good to see some of the funnier character like Ratzo, Peppe the Prawn, and Gonzo doing some funny bits.There are so many great characters to work with here, they really missed a golden opportunity to bring back a winning franchise.Next time, maybe Disney will let their Pixar team tell the story...