* CaliforniaDoubling: The underwater scenes are supposed to be Gibraltar, but were shot in the Bahamas; also, since Japan didn't allow for StuffBlowingUp in a national park, parts of the Little Nellie battle were shot in Spain.
* TheDanza: Aki is played by Akiko Wakabayashi. Though interestingly, Mie Hama was supposed to play this role until she was given a part that better suited her limited grasp of English.
* HeyItsThatGuy: Sean Connery has the dubious honor of beating the crap out of [[Wrestling/DwayneJohnson The Rock's]] grandpa, WWE legend High Chief Peter Maiva.
* TheOtherDarrin: Creator/DonaldPleasence takes over the role of Blofeld from the Anthony Dawson/Eric Pohlmann combo that had previously been playing the part...
* TheOtherMarty: ...however, he wasn't the first person who attempted to do so. The original actor they cast was Jan Werich, who proved completely wrong for the role and so was replaced by Pleasence.
* SerendipityWritesThePlot:
** Mie Hama was having trouble learning English, while Akiko Wakabayashi had much progress. Since the former [[SeriousBusiness took this so seriously]] that she threatened to [[{{Seppuku}} kill herself]] if fired, the producers just traded the roles between actresses, as Kissy appears much later in the story and has less lines.
** The Toyota 2000GT wasn't supposed to be a convertible, but it got converted into one due to Creator/SeanConnery's height.
* ThrowItIn: While everyone else is remarkably calm, Blofeld's cat gets completely freaked out and tries to escape when the control room starts taking structural damage.