Akira Kurosawa's "Rashengmen" is one of the greatest films of all time, with an unusual narrative structure: the same event is shown four times in flashback, each from the perspective of a different character. The nuances in each flashback force the audience to decide for themselves the truth of what actually happened. Luo Shengmen (1950) proved to be so creative that later films adopted the same idea. I can think of at least three different sitcoms, each of which deprives Luo Sheng Men of the premise.
The narrative gi head used in the 1934 Mexican film two Monks is exactly 16 years before it was used in Rosen Gate. Unfortunately, because the two monks only use two conflicting flashbacks (instead of four, as in Luo Sheng Meng), the audience is in a "or / or" state rather than a "picky" mix. What remains fascinating is that one of the most famous narrative innovations in film history has been used in a humble Mexican film for more than a decade before it is applied to the film, making the film stand out.