Mary Poppins Returns development hell since the release of the 1964 film. Walt Disney attempted to produce a sequel a year subsequent to the film's release, but was rejected by author P. L. Travers, who had openly dismissed Disney's film adaptation. In the late 1980s, then-chairman of Walt Disney Studios Jeffrey Katzenberg and vice-president of live-action production Martin Kaplan approached Travers with the idea of a sequel set years after the first film, with the Banks children now as adults and an older Mary Poppins with Julie Andrews reprising the role. Travers again rejected the proposed concept with the exception of Andrews' return.
Mary Poppins (film) film version of her books would do justice to her creation. In addition, Disney was known at the time primarily as a producer of cartoons and had yet to produce any major live-action work. For more than 20 years, Disney periodically made efforts to convince Travers to allow him to make a "Poppins" film. He finally succeeded in 1961, although Travers demanded and got script approval rights. The Sherman Brothers composed the music score and were also involved in the film's development, suggesting the setting be changed from the 1930s to the Edwardian era. Pre-production and song composition took about