Good sci fi movie

Rating: 10/10 (14 April 2017)

If anyone is wondering what the heptapods needed help with in 3000 years, their Jupiter like gas-giant is going to be hit by a gamma ray burst rendering their existence extinct, so they sent in the "shells" forward/back in time to make first contact and deliver a compressed message that advances humans technology to FTL (Faster than light) travel so nations can cooperate with each other, build the gigantic extinction saving "rafts" that will save the heptapods from extinction.
Sort of like a inter-species house moving job. The heptapod unique physiology shaped by their evolution on a gas giant would give them advantages such as having a superior understanding of time and space, allowing them to see their own species future demise, capacity for telepathic communication, but they could also be unable to help themselves survive the gamma ray burst in the relatively short astronomical time and thus need all the help they can find to prospect, mine, forge, transport and refine the exotic and yet unknown materials required to build the FTL engine cores that are needed to power the "shells" that would save the rest of the heptapods and relocate them to another gas giant. Human beings with their opposable thumbs, good at using tools and brains capable of empathy just happened to be adequate for that.