Continuity mistake: At the submarine base Bond places a see through copy of the submarine course on the display and the two lines match up and are touching, in the next shot the bottom of the lines are no where near each other but meet further up in the middle.
Continuity mistake: When Jaws gets up at the phone booth, he puts his hand near the handle to open the door. However, in a close up shot of Kalba, Jaws' hand is level with Kalba's face, nowhere near the handle, and in the next shot back near the handle.
Continuity mistake: The position of Stromberg's "Atlantis" changes during the film. One moment its far enough out to see it takes a speedboat to get to it, then its so close to land Bond can get to it and back with his Lotus, finally its back out far enough at sea when the American submarine destroys it.
Continuity mistake: A guy in the submarine sits down next to a couple of guys playing chess. The man behind is reading a magazine at eye level, which a frame later disappears.
Continuity mistake: A sailor on one of the submarines took the paper for the incoming telex with the new coordinates for the missile: code 0292765491. Then he reads the coordinates from this paper, but said something completely different: code 034285219.
Continuity mistake: When Bond's car comes out of the water, the number of people on the beach keeps changing all the time: A couple on the shore next to the car appears and disappears and the crowd on the right side increases and decreases randomly.
Chosen answer: When the nuclear subs have been destroyed, there's an explosion in the control room, and one of the men cries out "Fuel tank!" Liparus has numerous internal fires raging after the battle with her crew. These uncontrolled fires eventually spread to her fuel tanks and ammo storages, one of which explodes in a huge fireball and finally causes Liparus to sink.
I thought the final explosions that sank the Liparus were deliberate self destruction after completing the mission in an attempt to destroy any evidence, rather like when Bolfeld manually triggers explosives after being thwarted in You Only Live Twice.
Liparus sinks slowly, and that would leave her crew plenty of time to evacuate. Angry and armed crew with a grudge against Stromberg.
Jukka Nurmi