Creator Backlash / Disowned Adaptation: P.L. Travers absolutely hated the film, due to it's changing of several elements of her original stories (In the books, Mary is a complete Jerkass throughout) and the inclusion of the animated sequence. So much so, that at the premiere, she approached Walt Disney before it's first screening, demanding the sequence be removed. Disney refused, and later, when the film had concluded, Travers broke down crying, not because the people hated the film, but because they were giving it a standing ovation.
What Could Have Been: Walt Disney had first considered making a live-action adaptation of Mary Poppins as early as 1938, but P.L. Travers didn't think it could do justice for her books. Mainly because Disney hadn't done any live-action films at the time.
