This clever, funny big-screen adaptation of Lauren Weisberger's best-seller takes some of the snarky bite out of the chick lit book, but smoothes out the characters' boxy edges to make a more satisfying movie. There's no doubt The Devil Wears Prada belongs to Meryl Streep, who turns in an Oscar-worthy (seriously!) strut as the monster editor-in-chief of Runway, an elite fashion magazine full of size-0, impossibly well-dressed plebes. This makes new second-assistant Andrea (Anne Hathaway), who's smart but an unacceptable size 6, stick out like a sore thumb. Streep has a ball sending her new slave on any whimsical errand, whether it's finding the seventh (unpublished) Harry Potter book or knowing what type she means when she wants "skirts." Though Andrea thumbs her nose at the shallow world of fashion (she's only doing the job to open doors to a position at The New Yorker someday), she finds herself dually disgusted yet seduced by the perks of the fast life. The film sends a basic message: Make work your priority, and you'll be rich and powerful... and lonely. Any other actress would have turned Miranda into a scenery-chewing Cruella, but Streep's underplayed, brilliant comic timing make her a fascinating, unapologetic character. Adding frills to the movie's fun are Stanley Tucci as Streep's second-in-command, Emily Blunt (