It also didn't pass by me that these aliens were HEPTOPODS and had seven tentacles....YES TENTACLES. Now in all the movies I have ever seen, tentacles are never a good thing. So I just say we take off and nuke the sight from orbit (it's the only way to be sure). Of course that is one of the options that many on Earth want to take to deal with the aliens just because we like to blow shit up.
I enjoyed this one a lot. I felt smart while watching it and every human reaction to the Arrival rang true. Everyone reads something different into the small scraps of information the humans are able to get from the aliens and it almost leads to our destruction. That stuff is really interesting because by raising the stakes the search for information become even more crucial. The resolution to the story was both smart and satisfying and twisted my noodle a bit. But she saved the world and was rewarded for it. Amy Adams impressed me once again. Smart and satisfying in a cool metaphysical way.