According to Thewashingtonpost Earlier today, it looked like Kristen Stewart had won the coveted lead in “Lie Down in Darkness,” the adaptation of the William Styron novel. Now it appears that hasn’t happened just yet. Vulture had reported this afternoon that Stewart was on board for the film, having snagged the part of Peyton Loftis that also piqued the interest of Jennifer Lawrence. I blogge…