In 2002, Julie Powell was a secretary who blogged on the side. Now, she's a bestselling author whose first book, Julie & Julia — a former Buzz Book Club pick — has been adapted into a film starring Amy Adams and Meryl Streep. Along the way, she's stirred up some controversy, and so when she stopped in San Francisco earlier this week, I was curious to chat with her about the book, the movie, and what comes next.