Christina Aguilera

CHICAGO – If you’ve ever wondered what the difference is between a director and a producer, let “47 Ronin” explain how the hierarchy of creativity hinders the evolution of even the most straightforward-sounding pitches. “47 Ronin” is the type of samurai movie set in Japan that features native actors speaking only English, while Keanu Reeves stars as an outsider clearly plunked into the picture for stateside star power.