Works in this franchise with their own Trivia pages:

* ''Trivia/FirstBlood''
* ''Trivia/RamboFirstBloodPartII''
* ''Trivia/RamboIII''
* ''Trivia/RamboIV''

!!The Franchise in general:

* ActorSharedBackground: Richard Crenna playing military character relates to Crenna having served in the military in real life during World War II.
* TheCharacterDiedWithHim: Trautman died off screen in the fourth movie because Creator/SylvesterStallone felt it wouldn't feel right replacing the late Richard Crenna. As he himself put it: "Trautman died the day my friend Richard died."
* DivorcedInstallment: For the ''Rambo'' Master System game, Sega's license was only applicable for the American version, so when it ended up being released in Japan and Europe, it was relabeled ''Ashura'' and ''Secret Commando'' respectively, with all use of Rambo imagery and theme music taken out.
* FakeRussian: Both Podovsky and Zaysen were played by an Englishman (Creator/StevenBerkoff) and a French (Marc de Jonge), respectively.
* UnintentionalPeriodPiece: Parts II & III especially, due to their late UsefulNotes/ColdWar setting. Even the fourth movie is showing signs of this, with Myanmar slowly but surely opening up politically.
* WhatCouldHaveBeen:
** One of the original plot ideas for the fourth film involved Rambo going to Afghanistan and taking on the Taliban.
** Sylvester Stallone was working on a script for a fifth Rambo movie, which would have featured the titular hero going into Mexico to rescue a teenage girl who had been kidnapped by the northern drug cartels, with the ominous title "Last Blood." But after the success of ''Film/TheExpendables'' the project was scrapped so that Stallone could focus on the sequels for that franchise.
** Stallone also wavered a bit on whether he would be part of the TV series about Rambo mentoring his son, before ultimately opting out.
* In Japan, where ''{{Rambo}}'' was indeed very popular, the word "rambo" can be translated as "senseless violence"
** Likewise, in Finland, "Rambo" has become a generic word to describe a commando of any sort. So much so that many younger people are surprised to find out the word comes from the movies instead of the other way around.