This week on Pop Culture Happy Hour, NPR’s Linda Holmes, Stephen Thompson, Trey Graham and Glen Weldon talk about the movies ‘Cloud Atlas’ and ‘Wreck-It Ralph.’  Also, they talk about children in fiction who are separated from their parents. Why are there so many in TV, film and books? All that plus, What’s Making Us Happy this week, including rediscovering TV drama ‘Party of Five,’ Acorn TV, Assassins Creed III and music in commercials.