Z for Zachariah (2015)

A group of strangers happen to meet in a post apocalyptic world and there lives are forever changed.

I give this movie 4 out of 5.

Starring Chiwetel Ejiofor (12 Years a Slave, Dirty Pretty Things, Serenity, 2012) as John Loomis, Margot Robbie (Suicide Squad movies, The Wolf of Wall Street; I, Tonya; The Legend of Tarzan) as Ann Burden and Chris Pine (Star Trek movies, Wonder Woman movies, All the Old Knives, I Am the Knight) as Caleb.

https://www.imdb.com/title/tt1598642/