Watch Miyamoto Musashi: Birth of Two Sword Style for Free: How to Stream the Movie Online at 123Movies. . In the third installment of Yoshikawa's novel Musashi, things continue from the 2nd film at the end of battle, where Miyamoto continues on a mission of learning; with the introduction of his arch-rival Sasaki Kojiro; and lastly the large cast of characters rendezvouses for a fateful finale.