While this looks like just another cash grab generic family movie, this is in fact loads of fun and reminded me a lot of my simpler elementary school days when history and science were actually fun. Although the story itself is rudimentary at best, the characters, jokes, simplified history and science references and personality of this movie more than make up for it. It's just one of those movies that you just can't finish watching without a smile on your face.
In a sentence:
Although it is simplistic and spews out a lot of commonly accepted falsities, this is one of those rare movies that manages to make you feel like a kid again.