Its not very Graphic.... i mean Kids nowadays are introduced to Graphic stuff a lot.... Gore and Blood does not affect our younger Generation than it did 25+ years ago.
Movies like The Exorcist would not even scare our current 12-13 year olds... Movies like Alien also.. and The Thing well, this was really disturbing 30 years ago... but Kids see worse in Video Games nowadays.
So Horror/Gore i would not consider it to bad.
Harsh Language there is some but its never over the Top. If your Child has seen the whole Alien Franchise and is not effected by the overall Gore/Foul Language in those movies then they should be fine.
Then it comes to the Nudity.... Yes TWO people are in the Shower but they are only naked and kissing and its not long, you only see the Female from behind and Male from Waist up.
There is just a quick shot where the Female Jumps back and then we view her from the side for some 1 second or so SIDE BOOB, where you can see Nipples... but its easy to miss due to being a very quick glimpse and not being endowed with very Large Bosoms
So overall you wont notice that Nudity, its very brief.