When Sonia Nassery Cole set out to film The Black Tulip in her homeland of Afghanistan, she knew the odds were against her; she was told time and time again that filming inside a war zone would be impossible. What she didn’t anticipate was how intent the Taliban and its sympathizers were on halting the film’s production—the crew encountered extortion, government corruption, kidnapping attempts, and death threats, even with around-the-clock security. Her...