Disney’s first movie to feature a black princess, ‘The Princess and The Frog,’ opens this week in select cities, and nationwide on December 11. Jeff Yang, trend forecaster for market research firm Iconoculture and columnist for the San Francisco Chronicle, talks with us about the challenges of marketing a film to both a wide audience and niche segments. And Latoya Peterson, who’s been tracking the black community’s reaction to a princess who spends most of the movie as a frog, relays what she’s been hearing on the ground.