Continuity mistake: When James Bond is fighting underwater with an opponent, the opponent rips off James' diving mask (which is blue). Then James rips another mask off another opponent who is lying dead on the ocean floor. This dead opponent's mask is black. James puts on the black mask and then he turns around and the mask is blue again.
Continuity mistake: When Bond is being chased through the parade, they show the float with the girls on it. In the background behind it as it rolls by is a red sign that says "The Perfume Shop". Later Bond is seen running up to the float and going inside of it to hide. When Fiona runs up to the float and sees the blood on it, the red sign is still visible, which means it was not really moving in the parade at all.
Continuity mistake: Bond swims to the beach after inspecting the underside of the Disco Valante for the first time. As he walks out onto the shore, he is carrying his fins and he is wearing a red wetsuit jacket, black shorts and has a knife scabbard attached to his right leg. In this shot it is also clear to see that he is barefoot. He tosses the fins aside and unzips his jacket to remove it. After a quick edit he is tossing the jacket aside and he is now inexplicably wearing shoes and has somehow lost the diver's knife scabbard attached to his leg. There was no way to have acquired the shoes and lost the scabbard in that instant.
Continuity mistake: When Domino is on the beach with 007 she is given a dog tag belonging to her deceased brother, in one shot she has both hands on the tag and moves her right arm to the sandy floor but midway through a sentence the shot turns to a different angle where she has both arms on the tag again.
Continuity mistake: In the car scene where Fiona escapes, she did not have a cigarette lighter in her hand, but the gun with which she held James Bond. James grabs her hand with the cigarette lighter and moves it near the flame, but if that's the case she still would have had a free hand to shoot him with.
Continuity mistake: When James Bond is inside the plane that is underwater, just before he goes to remove the facemask of the dead pilot Angelo, watch closely as Bond is holding a torch in his left hand and he is about to remove the mask with his right hand, but in the next shot, it is Bond's left hand hand that removes the mask and the torch is nowhere to be seen.
Continuity mistake: When 007 is trying to escape from the Disco Volante, having taken underwater pictures, you see the speedboat come into contact with the oxygen tanks that 007 is using, as he is spun round you can see that the tanks are undamaged, but when one of Largo's henchmen pulls the tanks out of the water, the tank on the right hand side is damaged.
Continuity mistake: When Major Derval steps up to the co-pilots seat and sits down you can see him wearing an orange life preserver and strapping on the white four-point safety harness. However, when he removes the gamma gas from his pocket the safety harness is missing but is back in place in the next scene.