I saw some mild subliminals in picture 2, maybe that is what is making you think there is something going on there.

The bathers in the background on the left, the lady is naked, and look where her hand are.

And although I don't think it is subliminal the boy on the right as a freaken 4 inch round hole in his chest.

There are a couple more but they are less obvious.

I had another look at the posters today and it does at first glance look like the woman is naked. But she has a bathing suit covering her front so her garment is only well hidden. But yes, her hand is strangely placed even in the original poster.
The boy with the hole in his chest is only the victim of shadow, though. Nothing subliminal about that, most likely. It's not very prominent in the poster.

The way the woman holds the ball/sun is a copy of the way ancient egyptians are depicted holding the sun.

Interesting.

Well I also thought the view of the young girl on the lefts buttocks was inappropriate, although she might be wearing a thong.

Second girl on the left also seems to be topless

you will notice also the girl in the background had a part of her cut away to make her look thinner, zoom in, you will see the clear line, so somebody worked the image a bit.

The picture of the two guys has a face on the back of the guys shirt, but I think that is just pattern matching in the brain and is not intentional, just matrixing.