Other mistake: It's raining when Nameless and Sky are fighting (rain is dripping off their swords and is on Nameless' face when going towards Sky in slo-mo), but their entire bodies never get wet.
Hero (2002)
1 other mistake - chronological order
Directed by: Yimou Zhang
Starring: Jet Li, Donnie Yen, Tony Chiu-Wai Leung, Tony Leung Chiu Wai, Ziyi Zhang, Maggie Cheung, Zhang Ziyi
Visible crew/equipment: When Broken Sword and Flying Snow are walking in the desert to the place they want to hurt themselves, the shadow of the crew is visible on Flying Snow.
Flying Snow: Since you wish to die, I will assist you.
More trivia for Hero
Question: Was this film based on an true story, or was it fiction based on the true warring states as the backdrop?
Answer: It was a fiction based on the true historical period as backdrop, althought it sorted of resembled a true event that the deserter general of Qin gave his head to an assassin as a pass to get close to the Emperor, who was then still a king of a state among the warring states.