This movie is the best that I have seen in a long time! But I am glad that I just went with my dad. It would have been too inappropriate for my two little sisters (6yrs and 8yrs).
Expect some alien guts and goo, but there is not a lot of it. There is a quick tongue kiss with an inappropriately dressed woman and an alien. There is some mild language, but it will not be a big problem. It is mostly at the beginning. Agents J and K are good role models. The message in the end was good too!
It is a GREAT movie with a GREAT ending, and a lot of people that reviewed this movie were overreacting! They must have been thinking of a different movie! The ending was unexpected and you don't run into that very much!
Before you take your kid to see this movie, you should know him/her. Does he/she get scared easily? Get grossed out VERY EASILY? Learn quickly from what he/she sees?
I hope my review was very helpful!!!