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. Written and directed by Alan Mak and Felix Chong. Filming began in March 2010 and wrapped up on 30 June 2010.[