There were many films at the Tribeca Festival, many about women, and many others directed by women. “Mary Shelley,” starring Elle Fanning, is not only both, but perhaps was one of the best films at this year’s Tribeca Festival, which ended recently. As the title suggests, "Mary Shelley" tells the story of the nineteenth century-author who penned the horror classic “Frankenstein.” And in a case of irony as poetic