Question: is supercalifragilisticexpialidocious in the original mary poppins book?
Answer: "Supercalifragilisticexpialidocious" Isn't In 'Mary Poppins Returns' For A Good Reason. ... According to the Mary Poppins Returns filmmakers, "supercalifragilisticexpialidocious" is so closely linked with the original 1964 film that they had no desire to recreate it in their own story.