Plot hole: In the scene for Heihachi's funeral: Gisaku is at the funeral and is seen full face as Kikuchiyo shouts the bandits are coming. Everyone runs for their posts and bent over Gisaku is left standing by the grave. Kikuchiyo runs to dismantle the bridge with his crew when Gisaku's son, his wife and baby come by to get the old man who they say has refused to leave the mill. There is no way Gisaku could have outrun Kikuchiyo to the bridge and there is no way that his son and daughter-in-law could have known he was in the mill"
Seven Samurai (1954)
1 plot hole - chronological order
Directed by: Akira Kurosawa
Starring: Toshiro Mifune, Takashi Shimura, Keiko Tsushima, Yukiko Shimazaki
Factual error: Toshiro Mifune's character, Kikuchiyo, travels to the bandits' camp and steals one of their two remaining fuselock muskets. Shortly afterward, the bandits fire twice at the samurai within five seconds with their last firearm. A fuselock takes as much as two minutes to reload, prime, and fire.
Kikuchiyo: This baby... It's me... It's what happened to me.
Trivia: Right after the battle scene where Kambei kills a bandit with a high stance strike, there's a shot of a bandit being swamped by peasant militia. Pay attention to another bandit riding up into this shot in the upper left corner. There's an unsuspecting extra who is standing right in the path of the second bandit's horse. The horse rams the extra, violently throwing him to the ground. (02:46:40)