This was a wonderful movie for three of us to see as a family, even my husband and I enjoyed it very much. Our 7-year-old loved it, especially the silly dialogue like the "completely unsupervised play space for kids" (may not be exact quote).
My son knew from the commercials that it wouldn't be just like the book but was looking forward to it anyway. He loves technology so the fact that, in the movie, everything is cooked up by machine and operated by remote control AND that the ending involves a flying car were right up his alley.
My son has Aspergers-ish PDD so sometimes is put off by things not being what he expects, but the level of humor here was just right for his smartness and he also enjoyed spotting the parts where the movie DID match the book, which was moments here and there like the pancake landing on the school and the open-roof restaurant.
OH, and the 3D was waaaay better than what I remember from like 20 years ago, which was the last 3D movie I saw. The glasses fit over ours without any discomfort and even my son, who sometimes isn't sure about wearing special gear and often balks at being required to do anything, didn't complain once. He thoroughly enjoyed it.
I also didn't notice that it was too loud, unlike most kids movies with any action in them at all. We enjoyed the 3D previews also, it actually was a good way for my son to get used to the glasses and forget all about them by the time the movie itself started.
I thought it was a great little movie that imaginatively used the concepts from the book to spin off from. The father-son theme reminded me of Chicken Little (the movie) a bit, but not in a bad or boring way.
I didn't even notice the language, but then again I live in NYC so my son unfortunately hears worse on the playground next door on a regular basis.
Husband came out from the theater wishing there were more movies for grown-ups that were as clever and enjoyable as this!