For those who don't understand the movie

Rating: 8/10 (20 January 2017)

I've read some negative reviews below and they just don't understand. They're criticizing the way Amy Adams tries to communicate and how our government reacted etc and the movie's point is that the aliens did that on purpose to unite the humanity. That obviously is necessary for humanity to help them in 3,000 years.
The plot is something scientific community was theorizing for many years and people who are not familiar with the concept may have issues comprehending it. I suggest watching it again. This is actually becoming popular movie plot as movies like Interstellar, About Time, and few others dabbled on but Arrival is the best adaptation of it.
One complaint I have about most science fiction movies that feature aliens is that they always assume the aliens have similar intelligence as ourselves. All aliens are just more advanced version of humans. Just look at our own planet, we have thousands of levels of intelligence from a chicken to a dolphin to a monkey to humans. One thing people need to understand is that suppose we someday venture into space and find an alien race with a dog's intelligence. That would be marvelous discovery but that alien race will not understand our behaviors or motives. So if an advance alien race who can travel space and time visits us, what makes you think you can understand their motives? The directing and acting were superb. I'm glad they didn't turn it into an action flick as this movie will be remembered for a long time.