What an extraordinary performance from newcomer Vicky Knight, who has to carry an entire film on her shoulders. Her task is doubly astounding considering that her character, Jade, is severely damaged—both inside and out—and bringing her to life requires a vulnerability that would likely frighten even the most seasoned actors. In the new film “Dirty God,” Jade’s name alone provides insight into her soul. We see in the opening that Jade bears horrible scars