What parents need to know
Parents need to know that because of global warming, the heroes are in peril from rising waters and they are stalked by somewhat scary-looking underwater creatures. There is comic slapstick violence (the acorn-chasing muskrat is squashed, splatted, attacked by a vulture, etc.), a sad memory of a mother's death, and a flood, and the tiger's fear of water is rendered in a couple of "nightmare" images (his point of view underwater, with big music). The film includes some very mild language ("crap," "ass," "pervert").