Factual error: When Professor Dent tries to shoot Bond at Miss Taro's and Bond is waiting for him in the darkened room, the 'Walther PPK' that Bond is busily screwing the silencer onto, at the beginning of the scene, does not have an external hammer, and is therefore not a Walther at all. It's a Browning 1910 .32 calibre. (00:55:10 - 00:56:35)
Plot hole: It's assumed that Dr. No had Professor Dent slip the spider into Bond's hotel room that night but if it were that easy to do that then why not just hide an assassin in the room to begin with. Someone had to be in the room to tamper with Bond's briefcase, the closet, and possibly the bottle of liquor so just hide an assassin instead of waiting for the spider to kill Bond.jbrbbt
Revealing mistake: James Bond and his two friends are hiding underwater while Dr. No's thugs search the river with dogs. Bond had very quickly cut three hollow bamboo stalks to use to breathe underwater through the stalks. However, you can see the sections in the bamboo, so the closed stalk sections, separated by the natural divider, would not allow air to pass through. Bond hadn't cleared through the sections with a thin pole, so these would not have been usable as breathing tubes without more work. (01:10:00 - 01:12:00)vtology
Other mistake: After the decontamination chamber scene, Bond and Honey drink a cup of coffee. Honey very quickly passes out due to the tea being laced with some type of sleep inducing drug. However, as Bond throws his cup in anger, Honey flinches very hard. Surprising considering how quickly she passed out after drinking the coffee.ritchiehicks
Continuity mistake: When Bond is confronting Professor Dent one of his socks varies in height from clip to clip. (00:55:35)
Character mistake: When 007 is interrogating Professor Dent at Miss Taro's house, Dent attempts to shoot him when he asks "who are you working for?" But a minute ago, his gun ran out of ammo when he was shooting at the fake 007 in the bed. So there is no point of picking it up and trying to shoot him. Also, when this happens, 007 says "that's a Smith and Wesson. And you've had your six." This is incorrect, as Dent carried a Colt M1911. However, he did fire six shots before running empty, which is one bullet less than the magazine capacity of an M1911.
Other mistake: At the beginning of the film when the lady who is calling London on the radio is shot through the glass there is a jump cut. This shows that two scenes were spliced together. Perhaps the prop gun didn't work the first time. The framing of the shot noticeably jumps when the gun shot happens.manthabeat
Continuity mistake: When Bond goes to see a fisherman, to ask him about a man's death, the fisherman walks away, saying he knows nothing, and walks into a bar on the beach. He is talking to the barman and the bar has nothing on it, until a second later, when, suddenly, there is an open bottle of beer, a glass half-filled with beer and an ashtray.kh1616