Keanu Reeves embodies Kai; the outcast who leads a small band of rebels against an army and supernatural enemies. Along with Reeves, director Carl Rinsch and other key voices from the filmmaking team reveal how this adventure would not be possible without Reeves' mastery of martial arts and total immersion in the role. Reeves leads 47 Ronin movie along with Hiroyuki Sanada, Ko Shibasaki, and Tadanobu Asano.