Mixed review
Very good redux. The animation was top notch (atleast until CS9 comes out) and the voice acting was fun. However where this falls flat on its face is the writing. C'mon, having someone shout, "I'm so frightened," is lazy. Don't assume the audience are morons, we know that being hung upside down by talking trees would make someone crap them self. (there is more, but that is just a prime example)
Anyway aside from parts where there was bad writing, the movie was very enjoyable, notably the exploding frog.