This is a very silly movie, but I quite enjoyed it. Jackie Chan doesn't do the crazy dangerous stunts he used to, but his brand of comedic martial arts is still entertaining. The kids are reasonably realistic, with only one being somewhat annoying precocious. There are some nice bits, like a running joke involving a criminal's wardrobe. The story doesn't make a lot of sense, especially since the McGuffin of the film would probably be far more lucrative in cleaning up the environment than for the impractical purpose the bad guys have in mind, but this movie isn't supposed to be anything more than a cute silly movie, and I thought it succeeded in that admirably.