"Alfred Hitchcock was fixated-not just on the dark, twisty stories that became his hallmark, but also by the blond actresses who starred in many of his iconic movies. The director of North by Northwest, Rear Window, and other classic films didn't much care if they wore wigs, got their hair coloring out of a bottle, or were the rarest human specimen-a natural blonde-as long as they shone with a golden veneer on camera. The lengths he went to in order...