Commodore Perry introduces the Colt Peacemaker as a 'single action revolver'. Being that it's 1855 and double action revolvers wouldn't be invented until 1889 there wouldn't be mention of single vs' double action yet.
Main lead, Takeru Satoh collaborate with many actors/actress from this movie . 1 . Takeru Satoh and Munetaka Aoki in Rurouni Kenshin 1, Rurouni Kenshin 2 : Kyoto Inferno and Rurouni Kenshin 3 : The Legend End . Takeru Satoh played as Himura Kenshin while Munetaka Aoki played as Kenshin comrade, Sanosuke Sagara . 2 . He also collab with Nana Komatsu and Shota Sometani in Bakuman . Takeru Satoh as Moritaka Moshiro, Shota Sometani as Eiji Niizuma and Nana Komatsu as Mashiro love interest Miho Azuki .