Filmmaker Jonathan Olshefski spent nearly 10 years filming Christopher Rainey and his family, who run a recording studio in a working-class African-American neighborhood of North Philadelphia. During the course of the film we see the Raineys get married, raise their daughter, and try to recover from a traumatic turn of events when she is hit by a stray bullet. Olshefski and Christopher “Quest” Rainey join us. Also, film critic Justin Chang reviews ‘The Post.’