Arrival is a unique science fiction. It starts with the aliens already being here and not a build up to it like other movies. I do not want to go into many details but I was disappointed by one scene where they were able to bring the bombs on board. I loved the communication between the aliens and the protagonist.
Arrival (Hover)
I found this movie to be intriguing to say the least. Working at trying to find a way to communicate with a species that does not think or look like us is very interesting. I found the movie to be very believable. The part of bringing in the bombs is humans normal response to some perceived threat. Blow it up ask questions later.