Movies as Medicine Series. Please register in advance to claim your tickets. When Jane and Michael the children of the wealthy Banks family are faced with the prospect of a new nanny they are pleasantly surprised by the arrival of the magical Mary Poppins (Julie Andrews). Embarking on a series of fantastical adventures with Mary and her Cockney performer friend Bert (Dick Van Dyke) the siblings try to pass on some of their nanny’s sunny attitude to their preoccupied parents.