Mary Poppins Mary Poppins Mary Poppins is a series of eight children's books written by British writer P. L. Travers and published over the period 1934 to 1988. Mary Shepard was the illustrator throughout the series. The books centre on the magical English nanny Mary Poppins, who is blown by the East wind to Number 17 Cherry Tree Lane, London, and into the Banks' household to care for their children. Encounters with pavement-painters and shopkeepers, and various adventures ensue, until Mary Poppins abruptly leaves—i.e., "pops out". Only the first three of the eight books feature Mary Poppins arriving and leaving. The later
Mary Poppins Returns script. On February 18, 2016, Emily Blunt was cast in the film to play the title role in the sequel. On February 24, 2016, Lin-Manuel Miranda was cast in the film to play Jack, a lamplighter. In April 2016, Disney confirmed that the film was in development and that Blunt and Miranda had been cast in the lead roles. In May, Disney announced the film's title as "Mary Poppins Returns". By July 2016, Meryl Streep had entered negotiations to join the cast to play cousin Topsy, and in the following month, Ben Whishaw in negotiations to play the grownup Michael