Katsumoto from The Last Warrior is based on the legendary Japanese samurai Saigo Takamori. In reality, Saigo led the Imperial forces to victory in the four-day Battle of Toba-Fushimi in January 1868. By 1877, he had allied with rebel forces and participated in the Satsuma Rebellion. After this defeat, he retired from public life. Saigo's story has been told many times before, most notably in a 1953 movie starring Yul Brynner called The Last Samurai. However, this new film takes some major creative liberties with its storyline - starting with replacing Japan with America, and changing several key events in order to make the story more appealing to Western audiences. They also decided to give the character of Katsumoto an American name for no apparent reason other than it would be easier to say (like Jack Nicholson's character in Five Days of War). In addition, they changed the character of his enemy entirely. Instead of the British army, they cast Jared Leto as Lord Blackwood, a fictional villain who wants to start a war between America and Japan. Finally, they added some romantic subplots between Katsumoto and two American women. One is played by Jackie Chan's daughter Jayne Chan, and the other one is named Molly Parker and she's a famous actress.