This film got to my absolute top list.

Rating: 10/10 (10 February 2017)

Remember that the one star rating almost every time not a marker for a bad film like 2,3,4 stars, but a marker of a failed expectations.
This move is not about aliens, its about humans. This move is about one particular character and its tough choices. Its highly focused inside, not outside. Its highly emotional. It would be better if you have a child, if not try imagine how it'll be to have one. How would you fill to your son/daughter.
If you have problems putting Sci-Fi title near one of sentences above - you could dislike this film. If you think some of the sentences above are boring - you could dislike this film. Like a tone of people with 1 star.
I have read 9 pages of frustration and almost every review you could sort to one of the categories: 1. It's not an action. Where are my booms and shooting? - It's not about shooting, you can get it right from the trailer. 2. Its boring. Someones drama is not a valid Sci- Fi move for me. - OK, it happens. Pass by. 3. It has numerous mistakes. - This guys just missed some plot twist while going pee may be. 4. It's no technically accurate. - If it would be absolutely technically accurate then we would have the alien tech, and it'll be documentary film - not a Sci-Fi.
If you are OK with my 5 prerequisites then with a high probability you will love this film very much, as i do. Have a nice Arrival.