‘Leave the World Behind’ is a reminder to fortify your family and not surrender to the fear porn. Warning: Spoilers ahead. Netflix’s Michelle and Barack Obama-produced movie “Leave the World Behind,” which is currently the most-watched film on the platform, is fomenting a lot of fear on the internet. The dystopian movie chronicles the Sanford family’s fight for survival in the wake of a cyberattack. The middle-aged mother, Amanda, father, Clay, and their 16-year-old son, Archie, and 13-year-old daughter, Rose, live in New York City but happen to be on a spontaneous holiday in Long Island for most of the...