This movie was actually pretty good! It is WAY better than the third Ice Age, which wasn't bad except the jokes in the third one were kinda bad. As a fourth movie, it was also better than the fourth Shrek movie! The Shrek series should've stopped at the third movie because the fourth one was terrible. Anyway, Ice Age 4 is a good movie for kids, despite some scenes that might frighten them(earthquakes, a giant crab, tidal waves, and losing family members), but I don't think it'll be a problem! There's also pirates in this movie! You can say that Ice Age 4 is a computer-animated family comedy disaster movie! It's like it has a bunch of genres!