History Trivia / BattlesWithoutHonorAndHumanity

* OldShame: Creator/SonnyChiba said later in life that he regretted not reprising Katsuoshi Otomo in ''Final Episode''.

* MissingTrailerScene: The very first scene in the original film's trailer has Hirono and Sakai hold up a man gunpoint while challenging off-screen enemies, something that we never see in the final cut.

** Tetsuya Watari was supposed to be cast as Hirono, but he was recovering from an illness when production began. They then cast Hiroki Matsuakata in the role, before he swapped roles with Bunta Sugawara. Of note though, Watari was also earmarked to star opposite Sugawara in 1975's ''Cops vs. Thugs'' with Fukasasku, but his illness went into remission. Watari did however finally get to work with Fukasaku, twice, in ''Graveyard of Honor'' and ''Yakuza Graveyard''.

* DeletedScene: [[https://mobile.twitter.com/ya_san8931/status/1298898131086524417 A still exists of one in ''Final Episode'' with Yamamori trying to sneak away with a cut of the Tensei Coalition's money, but he is stopped by Takeda and Matsumura.]]

* TheOtherDarrin: Toshie Kimura died during the production of the last two Battles, so Rika Yamamori is instead replaced by a separate character who serves as Yamamori's mistress in ''Final Episode''.

* DeletedScene: A still exists of one in ''Final Episode'' with Yamamori trying to sneak away with a cut of the Tensei Coalition's money, but he is stopped by Takeda and Matsumura.

* MissingTrailerScene: The very first scene in the original film's trailer has Hirono and Sakai hold up ay gunpoint while challenging off-screen enemies, something that we never see in the final cut.

* DeletedScene: A still exists of one in ''Final Episode'' with Yamamori trying to sneak away with a cut of the Tensei Coalition's money, but he is stopped by Takeda and Matusumura.

* KeepCirculatingTheTapes: While most of the yakuza who were involved in the incidents portrayed in the films were in jail when the films went into production, when they were released they managed to successfully block Toei's attempts at releasing the saga on TV and home video until the late 2000s.

* ShoutOut: Toshiaki Tsushima's score, especially the opening chords of the first film, are often used in Japanese noontime variety shows as a wake-up call.

** Fukasaku was not the producers' first choice as director. They wanted Sadao Nakajima, who would later direct the ''[[Film/NihonNoDon Nihon no Don]]'' trilogy a few years later.

** Bunta Sugawara wasn't even supposed to be in the series until he goaded the producers did so. When he was cast, he was supposed to be Tetsuya Sakai until he swapped roles with Hiroki Matsukata.

** William Friedkin spoke positively about the series, citing Kinji Fukasaku's [[GreyAndGrayMorality dark approach to morality]] as an inspiration on Friedkin's own work, such as ''{{Film/Sorcerer}}'' and ''Film/ToLiveAndDieInLa''. Friedkin even went on to say 'that never redeeming the bad guys' or 'allowing the good guys to win' is something that can't be done in American cinema today.

* RetroactiveRecognition: Naoya Makoto, who'd later earn fame as the [[Series/HimitsuSentaiGorenger first Akaranger]] appears in ''Police Tactics'' as one of Eda's mooks.

* TheOtherDarrin: Toshie Kimura died during the production of the last two Battles, so Rika Yamamori is instead replaced by a separate character who serves as Yamamori's mistress.

** Bunta Sugawara wasn't even supposed to be in the series until he goaded the producers did so. In fact, he was supposed to be Tetsuya Sakai until he swapped roles with Hiroki Matsukata.

* TheOtherDarrin: Toshie Kimura died during the production of the last two Battles, so her character's role was taken up by someone else.
* TheRedStapler: After the film's success, Hiroshima dialect as spoken by the yakuza in the film became "hip" among Japanese teens and young adults.