I saw Avatar with adult friends and was frankly astounded at the many achievements of this sci-fi war movie; we enjoyed it very much. It was a total onslaught on the senses in 3D, showing us a magnificently imagined other-world and then seeking to destroy it in a series of horrifying war scenes. For my kids it's way too far over the top with violence, suspense, tragedy and sensory overload. On the upside, I found the themes of the movie ultimately uplifting (about 160 minutes in) and also morally unambiguous: there is no doubt who the good guys are. Also, the dozen or so objectionable words are not new to my kids nor inappropriate for the harrowing wartime scenes where they occur. It seems unusually moral for main characters to declare they are "mated for life," and I did not find the issue of nudity or sex to be troubling otherwise, though reading other reviews below give me pause here. (I don't recall seeing bare breasts, and shapely blue behinds were covered by tails, but I'm sure the other reviewers know what they saw). I imagine I will be comfortable with this material when my kids are teenagers (wish me luck), but not now when they are 8 and under.