​Show: The Hangover, the caviar of immature-dudes-take-a-Vegas-roadtrip comedies, watched as late as possible in a theater in Vancouver's Chinatown to stay awake long enough to catch a red-eye flight back to the States.Food: Andres Baby Canadian Champagne, a British Columbian wine of low alcohol content and questionable vintage.Difficulty: Surprisingly easy. Even though the movie theater had prominently placed (and polite) signs prohibiting outside food and drink, nobody looked twice at my in