The film was part of the line-up at the Japanese Canadian Film Festival in Toronto in 2018.
In some scenes of the battle you can see horse-men with something inflated on their backs. This is called a "horo". It is a simple device that was usually made from silk and light wood. It was used to protect the rider from the arrows shot by the enemy.
Actress Kasumi Arimura who plays the Onna Shinobi (Female Ninja) Hatsume from Iga, played a woman named Tomoe Yukihiro who was used by Shinobis for revenge in the films Rurouni Kenshin: Sai Shusho the final and Rurouni Kenshin: Sai Shusho The beginning.