Many thanks to @etsuko0704 for sharing on twitter and youtube!
The theatrical release of 47 Ronin is Friday, December 6 in Japan. Press for the film has been high in Japan to begin with but it is accelerating as the release date approaches. N etsuko has graciously shared another clip from Japanese TV today.
Keanu is the only one who speaks English, but regardless several things are clear from the clip. He and Mr. Sanada are the principals in the cast and are giving interviews side by side while the other members of the cast are being interviewed separately as a group. There appears to be a camaraderie between the two men from several exchanges that occur.
Bits of footage from the film is sprinkled throughout the interview. The clip is here.