Other mistake: At the end of the film when Bond and Honey are rescued in the small boat, Felix walks to greet them. What is strange though, is that there is no mention about where Quarrel is, even though Quarrel and Felix were good friends. (01:43:50)
Continuity mistake: At the end of the movie Bond and Honey are in a small boat when Felix Leiter comes in a bigger boat and gives them a tow. When Bond sits next to Honey he sits on her right hand side. In the next shot he is on her left and in the next shot he is on her right, and back again, etc. (01:44:10)
Other mistake: In the closing credits, John Kitzmiller's name is misspelt "John Kitzmuller". (01:45:50)
Continuity mistake: When Bond and Honey are rescued in the small boat, Bond rises and places his hand on the side of the boat. From the opposite angle, his arm is resting on the side.
Factual error: When Bond and Honey are machine-gunned from the boat it is a Bren gun, but the magazine appears to be the wrong way round and faces backwards.
Revealing mistake: When Honey is telling Bond how much money the shells are worth there is someone bobbing up and down just under Honey, possibly a film crew member holding an unseen microphone.
Continuity mistake: The car chase that ends with the quip, "they were on their way to a funeral." During this car chase, you can see both cars coming round the same bend not just once, but several times. In between, there are close-up interior shots of Bond too. But three of the longshots are all from the same curve.
Revealing mistake: After Bond attaches the silencer to his gun, the next shot is of Professor Dent approaching the house at nighttime. However, this shot is the same shot from earlier of Bond approaching the house during the day. It has simply been mirrored and darkened to hide this.
Audio problem: During the opening credits (while it says: "assistant director") you can briefly hear the next bit of music start 12 seconds too soon - there are a couple of notes from "three blind mice" starting to fade in from the percussion music. But more time was needed, so the last 12 second of the percussion number are repeated. A slightly clumsy edit to cover the credits running longer than planned (best heared with headphones).
Revealing mistake: Every time a shot of the hallway outside of Bond and Honey's room in Dr. No's lair is shown there are several doors on the same side of the hallway that lead too nowhere. Notice when Bond enters the room looking for Honey near the end we don't see the reverse of the doors from the inside of his room.