ACTION: The action is minimal is consists mainly of Tim Allen acting like a dog and chasing a cat. There are also some other foot chases. I believe there's enough action/activity to keep the attention of most children.
COMEDY: The humor is mainly due to his acting like a dog so it's a bit on the silly side, but I didn't ever feel it was too silly or stupid. I believe most will enjoy the humor, especially if you enjoyed the original "Shaggy Dog." I counted a dozen chuckles and about as many smiles so it's not an especially funny movie.