Tom Hanks and Emma Thompson are in talks to star in "Saving Mr. Banks". The movie is a behind-the-scenes look at how Walt Disney was able to convince P.L. Travers to let his studio adapt "Mary Poppins" for the big screen. The result, of course, was an Oscar-winning film that made Julie Andrews a movie star and in many ways surpassed the fame of Travers' book. However, it was an enjoyable confection that Travers hated.