A tyrant forces the greatest warrior in the land to battle his greatest friend by holding the woman they both love hostage. The Lost Bladesman is a 2011 Hong Kong historical martial arts film adapted from the story of Guan Yu crossing five passes and slaying six generals in Luo Guanzhong’s historical novel Romance of the Three Kingdoms. It stars Donnie Yen as Guan, who also served as the film’s action director.