True stories that are turned into Hollywood films are a dime a dozen these days, and they often come across as heavy-handed accounts brimming with messages that practically scream out that their subjects are important. The story being told in “Just Mercy” is true and, focusing on racism in the American South in the 1980s and ’90s, yet still painfully relevant today, is as important as it gets.The difference between “Just Mercy” and so many others [...]