Authenticity, risk, and avoiding pale imitation — what Diet Coke’s marketing can teach nonalcoholic drinks about being desirable on their own terms.

Our list of the 101 best Los Angeles movies is as sprawling as the city, and includes "Chinatown," "Clueless," "Blade Runner," "Mulholland Drive," "Heat," "Pulp Fiction," "The Big Lebowski" and "La La ...