Very good movie. I thoroughly enjoyed it, probably more than my 5 year old!
I agree with some of the other reviewers in that some of the "voodoo spirits" could be a bit frightening to smaller kids. But overall, the movie was great! Tiana was beautiful in how she treated people, Lottie was funny and sweet in the lessons she learned, and Prince Naveen's tranformation (in many senses!) were great examples for children. Loved it!
I took my 4 1/2 year old to the 3D version and we really enjoyed it. The 3D special effects, I thought, were really good. BOB and The Missing Link were the stars of the show and really made us laugh. I especially liked the concept of 'teamwork' and taking care of one another.