A lot of those magazine-industry stomping grounds in New York City no longer exist. But precious pockets remain. ©20thCentFox/Courtesy Everett Collection That KT Tunstall anthem kicks in, the screen splits, and suddenly you see it: women across Manhattan getting dressed for work—saturated lipstick, high heels, roaring zippers—while Anne Hathaway pulls on a lumpy sweater in an apartment that could only cost $1,500 a month if three people were splitting it. You know the rest. Meryl Streep in white hair and sunglasses. Stanley Tucci breaking bad news with singularly gentle aplomb. Emily Blunt one stomach flu from her goal weight. "Florals? For spring? Groundbreaking." The Devil Wears Prada , first released in 2006, grossed $326 million and did something no fashion brand has managed since: It made an entire industry legible to people who'd never read a masthead in their lives.…