- Country: Japan
- Genres: N/A
- Release:
- Director: Tatsuo Ôsone
- Writers: Kikuo Umebayashi
- Language: Japanese
- Stars: Miki Mori , Yataro Kitagami , Jūshirō Konoe , Michiko Ikuno , Jo Asai , Rintarô Fujima , Harumasa Kawamoto , Saburô Kômyôji , Kôji Matsubara , Katsuhiko Miki
- Runtime: min
- Awards: N/A
- AKA: 巌流島前夜 (Japan) , Ganryujima zenya , Musashi and Kojiro: Eve of the Showdown , Plelude to a Duel (Japan)
- Plot: N/A
- IMDB:tt0198507
Ganryujima zenya Cast
Tatsuo Ôsone
Director
Miki Mori
Musashi Miyamoto
Yataro Kitagami
Kojiro Sasaki
Jūshirō Konoe
Genro Kuroshiro
Michiko Ikuno
Tsuma Takie
Jo Asai
Tadanori retainer C
Rintarô Fujima
Hosokawa house retainer
Harumasa Kawamoto
Genbanmon disciple A
Saburô Kômyôji
Witness
Kôji Matsubara
Genbanmon disciple C
Katsuhiko Miki
Genjiro Yoshioka