Mickey Mouse is extending his hand.

In her delightful and moving memoir, Sissy Spacek writes about her idyllic, barefoot childhood in a small East Texas town, with the clarity and wisdom that comes from never losing sight of her roots. Descended from industrious Czech immigrants and threadbare southern gentility, she grew up a tomboy, tagging along with two older brothers and absorbing grace and grit from her remarkable parents, who taught her that she could do anything. She also learned...