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.
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Hanks would play Disney, while Thompson is being eyed for Travers. John Lee Hancock ("The Blind Side") is attached to direct.
Hanks recently starred in the Oscar-nominated "Extremely Loud and Incredibly Close" and directed and starred in "Larry Crowne," which was a box office disappointment.
He is set to star in "Cloud Atlas," an adaptation of David Mitchell's award-winning novel of the same name, and "Captain Phillips," an account of a Somali pirate hijacking.
Thompson's has appeared recently in supporting roles in the "Harry Potter" films and "An Education." This summer, she will co-star in "Men in Black III" and will provide voice work for Pixar's "Brave."