Pop quiz: Which actress gave the most influential, ground-breaking performance in movie history? The answer would be none other than Audrey Hepburn in "Breakfast at Tiffany's." At least, that's the impression you get reading Sam Wasson's recent book, "Fifth Avenue, 5 A.M.: Audrey Hepburn, Breakfast at Tiffany's, and the Dawn of the Modern Woman." Hepburn's … Continue reading The most influential female role in history?