This movie is unwatchable for anybody over the age of 7, and even it is pushing it. The animation is bad, the telling of the story awkward, and the voice acting was atrocious. It is like they got everybody on a couch with a case of beer and had them watch the film and just say what came to mind.
I took my two boys to see this in the theater opening week. They did not fall in love with it, but enjoyed the movie well enough with its action scenes and funny, if a bit stereotypical, male characters. Personally I liked it much more than they did. I liked the fun yet strong (yet still somewhat stereotypical) female characters and I thought the plot had enough wiggles, if not true twists, to keep it interesting more so than your typical formulaic children's movie. It is also a beautiful rendered movie with lots of attention paid to small small details, which makes it fun to watch much like the original Cars was. It was no "Monsters, Inc." but it was my favorite Pixar movie in a while.
Even my 9 and 6 year old children were mocking this by the time it was half way over...It got two stars from because at least they watched the whole thing and it kept them entertained in a "so bad its funny" sort of way.
Rented this as a "Family" movie for a Friday night with the kids. Less than 15 minutes into it the adults had drifted off to other parts of the house. My 9 year old actually went and started another movie on a portable DVD player, which left my 6 year old watching this. So that is about the demographic you can expect to enjoy this movie. It is not the silly premise that makes this unwatchable to anybody with above a first-grade education. Silly did not derail "Flubber" or "Honey I Shrank the Kids" in my house. The plot is all over the place and the director and writers couldn't even make the classic fish out of water-us against the mean kids stereotypes work. Sadly it seems like this ideal had potential and the acting, although largely over the top, was what you would expect in this type of film. So I ended up giving it a half star for potential and full star since it kept my 6 year old happy for an hour and a half.