When high-spirited youngsters Jane and Michael Banks send yet another nanny packing with their shenanigans, they advertise for a replacement who'll 'sing songs and bake cakes'. Enter Andrews as the loveable Mary, a woman who turns the household on its head and forces their suffragette mother and banker father to finally pay their children some attention. Great songs, wonderful Technicolor animation in the fantasy scenes, and if it weren't for Dick Van Dyke's appalling London accent this would, like Mary, be 'practically perfect in every way'.