There's not much to get excited about in this gaseous, overstuffed, prime case of franchise fatigue. Our stinky ogre grows flabbier by the sequel, and this time around we find him reeling not only from the death of his froggy father-in-law and the prospect of running the kingdom of Far Far Away in his stead, but the news that the lovely Fiona is great with child. What to do in the face of such crisis but take to the road with Donkey and Puss In Boots while shoehorning in a new character (voiced by Justin Timberlake) designed to drag the middle-school demographic away from its iPods and into the multiplex? Bolstered by fart jokes, mass marketing, and the usual flood of tie-ins, Shrek the Third will surely take in its usual bundle at the international box office. But that doesn't make the movie a success. Like many another shoddy sequel, this one founders not only on the difficulty of extending a franchise beyond its natural life, but also on the unbearable strain of juggling a bunch of target demographics at once. Blinded by avarice and all out of ideas, once again Hollywood can't tell when enough is way more than enough.