• Julie Andrews played Mary Poppins in Robert Stevenson’s 1964 “Mary Poppins.”

Julie Andrews played Mary Poppins in Robert Stevenson’s 1964 “Mary Poppins.” (Photo : Twitter/@marieclaireuk)

Rob Marshall's forthcoming film "Mary Poppins" is not a film reboot.

In his interview with Vulture, director Marshall said that his upcoming film was an extension to Robert Stevenson's 1964 "Mary Poppins" film adaptation. The filmmaker added that he and the production team were using other books of P.L. Travers, not to mention that Travers authored eight books that the former regarded the author's masterpieces as the "Harry Potter of its time."

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For Marshall, he viewed himself as a big fan of the original "Mary Poppins" film and he was a very good friend of Julie Andrews that he held it in such respect. In line with his belief, Marshall teased that his film had not been turned anything far from the adventure in Stevenson's version.

According to Cinema Blend, Marshall's idea of labeling Travers' book series as the "Harry Potter" of its era was interesting. With this thought, it is possible to see the remaining seven books as they become adapted to the big screen. Also, both storylines showcase elements of magic, which can be applied to establish a strong plot for the upcoming film.

Based on Travers' book series of the same name, "Mary Poppins" centers on a magical nanny who visits a dysfunctional family in London. She uses her distinct way of life to enhance the ties within the family.

Aside from "Mary Poppins," director Marshall is also known for his work, such as "Into the Woods," "Chicago," "Memoirs of a Geisha," and "Pirates of the Caribbean: On Stranger Tides."

Since Marshall's "Mary Poppins" is still in its early phase of development, exact details on the plot, additional characters, and cast are yet to be revealed.