Okay, they’re alien life forms, but their bodies resemble humans completely and the lack of clothing ( bare breasts and nipples) were a problem for me. Most of the time, the females are covered - when viewed from the front, by a necklace, but there are 5 or 6 occasions where you get a good, clear profile of a bare breast with an erect nipple right in front of you.
There’s also a sex scene. You don’t see any graphic hard core sex, but they make out and moan some. You have no doubt as to what they are doing, especially when she states after they finish ( and she’s straddling his lap) that they have now mated for life.The storyline was great. I wasn’t even bothered by the whole Mother of the planet topics. But to say that sex isn’t an issue in this movie is misleading. If the nudity had been made clear, I would not have gone to see it. So, parents, if you wouldn’t take your teen to a movie where they show a woman’s bare breast in profile 5 or 6 times, don’t take them to see this. The only difference between what you see in this movie and what you see in real life is that the breast in question is blue.