* ActorAllusion: Thomas Krestchmann is no stranger in playing roles concerning Nazis. He [[Film/{{Stalingrad}} fought in Southern Russia]], [[Film/{{Valkyrie}} assisted in stopping the July 20 Plot]], and [[Film/ThePianist helped out Wladyslaw Szpilman.]]
** In the case of actor Ulrich Noethern, this overlaps with YouLookFamiliar, as this is his second time potraying Heinrich Himmler.
** Götz Otto, who plays Hitler's bodyguard, Otto Gunsche, had a minor role as an SS mook in ''Schindler's List.''
* ApprovalOfGod: The director of the film admits that he finds the 'Hitler Rant' meme amusing.
* FanCommunityNickname: Fans of the film and people who make 'Hitler Rant' parodies sometimes refer to themselves as "Untergangers."
* GagSub: The WebVideo/HitlerRants all over Website/YouTube were quite an internet meme around 2011. They continue to be made.
** Bruno Ganz has found some of them funny, but still wants people to know he put his all into that performance so he's a little torn. He says that once his sons asked him if he "had found Fegelein" yet.
* HilariousInHindsight:
** Bruno Ganz (Adolf Hitler) was offered the role of [[SchindlersList Oskar Schindler]]. He refused and the role went to Liam Neeson.
** Even more hilarious is that both Bruno Ganz and Alexandra Maria Lara would later play Holocaust survivors in ''The Reader.''
* WhatCouldHaveBeen: Oliver Hirschbeigel almost didn't direct the film, trying to leave the project to jump to another project that had just lost its original director. However, his contract stated that he couldn't leave the project and had to direct the film. The film that he tried to jump to? ''{{Blade}} Trinity''.