This lovely and incredibly welcome documentary explores the life, lessons and legacy of iconic children's show host Fred Rogers—whose compassion, earnestness and fundamental "goodness" seem to be in desperately short supply in today's contentious world. Be prepared to get hit with a wave of nostalgia and emotion. It's OK to cry, even. Mr. Rogers said so. Morgan Neville (an Oscar winner for 20 Feet From Stardom) directs.94 minutes PG-13.