Margot Robbie Is the Last Woman on Earth in the Z For Zachariah Trailer

Set in a postapocalyptic world, Sundance sweetheart Z for Zachariah could be categorized as a sci-fi film, but it feels much more like a romantic drama. Margot Robbie plays Ann, the last woman on earth. She's been living alone on a farm for over a year, until one day, Loomis (Chiwetel Ejiofor) shows up. The two begin to fall for each other, but a wrench is thrown in their love story when mysterious newcomer Caleb (Chris Pine) wanders into the farm. Caleb is younger and stronger, and even Loomis can't deny the attraction between Caleb and Ann — but what do you do when you're in love with the last woman on earth and she's falling for someone else? We'll find out when the movie opens on Aug. 28. Until then, check out the many other Summer movies opening this year.