On Monday, Disney announced that it was developing a new live-action musical adaptation of Mary Poppins , which immediately sparked debate on which leading lady would play the magical nanny! Mere speculation is fun, but some fans are so serious they're actually placing bets on which actress will snag the role! On Tuesday, Ireland-based online betting firm BoyleSports announced that Anne Hathaway is the current favorite to take over Julie Andrews 's famous role, with 6/4 odds! Not bad! Other stars who bettors think would be in the running feature many A-list actresses with vocal talent, like Emily Blunt (5/2), Amy Adams (7/2), Anna Kendrick (10/1), and Kristen Bell (11/2) -- who already played the nanny in a FunnyOrDie sketch! Other possible actresses to take the role include Amanda Seyfried (12/1), Gugu Mbatha-Raw (16/1), Lea Miche...