They really did a 180 on that one. And now I'm even interested in watching that movie.
I did some 3D-animation for three years back in high school. I really would like to know how difficult it was for them to replace the model and how many of the animations had to be completely redone. The skeleton should be the same, so they should have been able to recycle most of the animations in the end.
But holy shit, I didn't know Jim Carrey was in that one!!!