The extraordinary untold story of how one of the most beloved tales of all time, Mary Poppins, was bought to the big screen.

It almost didn't happen as cummudgeonly writer PL Travers fought against Walt Disney at every turn. If he were to bring her beloved children's book to the big screen it certainly would NOT be in musical form and it had to be be without Disney's usual whimsical animation style.

It is Walt's empathy which finally softens Travers and this is a feel good moment in histroy which is without compare. Amazing to know that Mary Poppins almost never made it as a the celluloid classic we have all grown up with.