Fox 2000 has set Anne Hathaway to star with Meryl Streep in “The Devil Wears Prada,” the David Frankel-directed adaptation of the Lauren Weisberger novel.Aline Brosh McKenna wrote the script, and Wendy Finerman is producing. Hathaway plays Andrea Sachs, a small-town girl who gets a dream job working for a top fashion magazine, one that turns nightmarish because of her imperious boss, the mag’s editor Miranda Priestly, to be played by Streep. Weisberger’s own resume included a stint at Vogue, and the model for the editrix is believed to be Anna Wintour. Elizabeth Gabler and Carla Hacken are steering the pic for the studio. Hathaway, whose breakout role came in “The Princess Diaries” pics, most recently wrapped “Brokeback Mountain” for director Ang Lee.