In short, Harper Lee agreed to let Aaron Sorkin write a script, but it wasn’t supposed to change the characters or “denigrate” them. Lee’s dead, but her lawyer says the script (of a play that’s supposed to open on Broadway in December) goes too far. “What happens now? The two sides could settle the dispute. Or the case could go to trial. In the meantime, we asked seven lawyers with relevant expertise to help us untangle the thicket — how much change is permissible, and who gets to decide whether the script crosses that line?”