* EnforcedMethodActing: Sean Connery is truly terrified of spiders. The legs of a stuntman were used when the tarantula crawled onto Bond. Note the shot when the spider is on his shoulder -- it's walking on a pane of glass. Once you've seen it you can't unsee it.
* FakeNationality:
** Joseph Wiseman, who played the half-Chinese Dr. No, was Canadian.
** Ursula Andress (Honey Rider) is a Swiss playing a Jamaican descended from an old-established (presumably British) colonial family.
* FountainOfExpies: Dr. No: the first of all Bond villains, though not the most emulated (that distinction goes to Blofeld, followed by Goldfinger).
* HeyItsThatGuy: Felix Leiter is Jack Lord of ''Series/HawaiiFiveO'' fame.
* ItWillNeverCatchOn: First, it was ignored by many studios. Then Creator/UnitedArtists [[AndYouThoughtItWouldFail gave little money and attention on the US release]]. 22 movies later...
* NoBudget: United Artists only lent $1 million. The art director got an extra cash from the producers' own pockets, and the special effects people convinced UA to give an extra $100,000 to do the CollapsingLair.
* ThePeteBest: Peter Burton as Q. Desmond Llewellyn would take over the role starting with ''Film/FromRussiaWithLove''.
* SameLanguageDub: Strangways and the photographer are dubbed, and Nikki Van der Zyl dubbed over Eunice Gayson and Ursula Andress...
** NonSingingVoice: ...which also had a singing voice.
* SerendipityWritesThePlot: The idea of Rider being trapped among crabs was scrapped because the crabs that would attack her weren't moving (being flown frozen from the Caribbean didn't help...).
* SimilarlyNamedWorks: The 2007 Systems in Blue song "Dr. No" is not intentionally related to the film, but there's a {{fan vid}} [[VideoFullOfFilmClips using clips from the film]].
* WhatCouldHaveBeen:
** Bond original line was simply "I am James Bond", but Sean Connery felt it was rather weak and [[BondJamesBond went off script]], resulting in one of the most famous movie lines of all time.
** Director Terence Young, who once had turned Lois Maxwell down on the grounds that she looked like she "smelled of soap, not sex", offered her either Moneypenny or Sylvia Trench, but she was uncomfortable with a revealing scene in the screenplay. She ended up playing Moneypenny.
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