Yeah, definitely don't bring your kids to it. I saw it last night, and some moron brought his extremely young kids with him to see it, I guess because he couldn't be bothered to find a babysitter, and seeing the movie must have been more important to him. Honestly, I thought the movie was pretty lame. After having seen thousands upon thousands of movies though, it takes a lot to impress me.
Um, lets see, it has full nudity in it, sex scenes, graphic violence, the blue dude walks around ALL the time with no pants on and they were even so kind as to make him anatomically correct and his johnson was on camera like ALL the time(lol wtf). I never would have said this when I was a teenager but, honestly I wouldn't let any kid under 18 see it. The movie sucked anyways. The "twist" at the end was so lame it was like a plot out of a cheesy 80's tv show or something. I felt my 163 minutes was wasted.