The Academy Award-winning film star and best-selling author of Then Again describes the ups and downs of living in a beauty-obsessed world, recounting stories about a makeup artist's embarrassing advice, her trip to Victoria's Secret with her teen daughter and more.

"When they were children in the suburbs of Los Angeles in the 1950s, Diane Keaton and her younger brother, Randy, were best friends and companions: they shared stories at night in their bunk beds; they swam, laughed, dressed up for Halloween. Their mother captured their American-dream childhoods in her diaries, and on camera. But as they grew up, Randy became troubled, then reclusive. By the time he reached adulthood, he was divorced, an alcoholic,...