Caught the last half hour of this film as I was channel surfing. The story is about the adventures of Sharkboy and Lavagirl who are creatures in a boy's dream that suddenly turned true.
The adventures are quite interesting as we see how shark boy and lava girl co-operate to defeat the bad guys despite being very different. Sharkboy is a hybrid of a boy and a shark and he can only live in water. Lavagirl produces so much heat that she destroys everything that she touches but she cannot stay long in water.
Lavagirl has the most radiant smile I have ever seen and the ice princess looks quite cute too! I also like the jokes told by the weird guy in giant goggles who is supposedly the boy's physics teacher in real life.
Internet Movie Database Link