Parents need to know that although this movie is geared toward kids, it does include some frightening scenes where the titular water creature attacks the movie's two villains and destroys their submarine with a flick of its tail; it's understood that both men don't survive. Also, these two villains are quite dangerous and don't seem to care about harming others who get in their way. They kidnap a boy, vandalize property, attack a boat full of people with a grenade launcher, and harpoon the monster. The movie also touches on a boy's loss of his mother, establishing that she died two years earlier and her death still affects both father and son. Finally, Mee-Shee is essentially a friendly monster, but it may appear scary at first to younger kids.

Families can talk about how Mee-Shee seems to instinctively know who the "good guys" and "bad guys" are. How does Mee-Shee protect and rescue people? How does Mee-Shee defend those same people against the movie's villains? Why is it important that the young boy not broadcast the fact that he has seen Mee-Shee? How does the film handle environmental issues, such as animal protection and the oil industry?