Z for Zachariah- The last woman on Earth movie

Z for Zachariah stars Margot Robbie, Chiwetel Ejiofor, and Chris Pine. The trailer makes it out to be a love triangle story after the end of the world. The movie looks like what I expected Last Man on Earth to be like..only with a woman..and a plot.

Synopsis:

In the wake of a disaster that wipes out most of civilization, two men and a young woman find themselves in an emotionally charged love triangle as the last known survivors.