 The film, which combines live-action and animation, stars Julie Andrews in her feature film debut as Mary Poppins, who visits a dysfunctional family in London and employs her unique brand of lifestyle to improve the family's dynamic.Dick Van Dyke, David Tomlinson, and Glynis Johns are featured in supporting roles.The film was shot entirely at the Walt Disney Studios in Burbank, California, using painted London background scenes.