Mary Poppins in 2004, Walt Disney first attempted to purchase the film rights to "Mary Poppins" from P. L. Travers as early as 1938, but was rebuffed because Travers did not believe a film version of her books would do justice to her creation and did not want an animated cartoon based on it. The books had been a favourite of Disney's daughters when they were children, and he finally succeeded in purchasing the rights in 1961, although Travers demanded and got script approval rights. The relationship between Travers and Disney is detailed in "Mary Poppins She Wrote", a biography of Travers,
Mary Poppins (character) Banks children of whom she is in charge. Mary also has a friendship with Bert (Dick Van Dyke), a jack-of-all-trades who is quite at home with Mary's brand of magic. She also is less vain and selfish (although there are a couple of references to her vanity when she replaces a dingy wall mirror with a more elegant one, and sings a duet with her reflection), and far more sympathetic towards the two children than the nanny in the original stories. Emily Blunt portrayed Mary Poppins in the sequel "Mary Poppins Returns". In both the West End and Broadway versions