Works in this franchise with their own Trivia pages:
The Franchise in general:
- Actor-Shared Background: Richard Crenna playing military character relates to Crenna having served in the military in real life during World War II.
- The Character Died with Him: Trautman died off screen in the fourth movie because Sylvester Stallone felt it wouldn't feel right replacing the late Richard Crenna. As he himself put it: "Trautman died the day my friend Richard died."
- Divorced Installment: 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.
- Fake Russian: Both Podovsky and Zaysen were played by an Englishman (Steven Berkoff) and a French (Marc de Jonge), respectively.
- No Celebrities Were Harmed: Rambo is partially based on Audie Murphy, one of the most decorated soldiers of the Second World War. In particular, the infamous ".50 caliber scene" from Rambo IV is based on a real-life incident in which Murphy hijacked a damaged German tank's machine gun emplacement and single-handedly held off some fifty advancing enemy troops. Murphy was even considered at various points for the roles of both Rambo and Trautman, but turned them down due to fears of frightening his young fanbase.
- Unintentional Period Piece: Parts II & III especially, due to their late Cold War setting. Even the fourth movie is showing signs of this, with Myanmar slowly but surely opening up politically.
- What Could Have Been:
- One of the original plot ideas for the fourth film involved Rambo returning to Afghanistan and taking on the Taliban this time around.
- 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 The Expendables 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.
- The Wiki Rule: The Rambo Wiki.
- 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.