Factual error: Jaws kills Fekkesh by biting his neck, something that would make him bleed a lot. Later, when Bond finds his body, there is no blood on the ground.
Revealing mistake: In both instances in the film where a helicopter explodes, it is quite evident that it is a model and it falls to the sea in one piece.
Revealing mistake: In the scene where the speedboat is landing onto the sea, after bursting out of the large tanker, one can see dummies on the speedboat.
Continuity mistake: In the underwater sequence, just before Bond fires a torpedo on a diver, he steers left, but the sub turns right.
Continuity mistake: At the end of the film we see the large tanker ship exploding at many different areas of its hull including a lot of explosions on the topside. However, there is a point where the camera shows the ship sinking with an underwater shot, sinking with bow first and then progressing towards the stern and there are no holes let alone burn marks that would show where the explosions took place.
Revealing mistake: When Jaws comes to the surface and starts swimming, you can see the sandy bottom of the water. There is not the 300 feet (or meters) that the depth gauge on the rescue pod shows.
Revealing mistake: When Jaws is attacking 007 and XXX on the train, Jaws picks up Bond and bangs him onto the ceiling. At one point in this, it is clear that Jaws is holding a dummy.
Visible crew/equipment: The wires holding Jaws to the magnet are visible.
Factual error: At the beginning of the opening title sequence, the Union Jack fluttering in the background is upside down.
Revealing mistake: As Bond enters the night club in Egypt, the camera pans right to reveal two extras who appear to be waiting for their cue to start walking, but obviously miss this cue as they don't actually start walking until the camera is on them. (00:32:48)
Revealing mistake: When the boat blasts out of Stromberg's lair and lands in the water, it's obviously a miniature and the people inside are obviously dummies.
Revealing mistake: As Bond and the major are hurtling toward the surface in the "escape chamber" toward the end of the movie, you can see inside the window. The little toy escape chamber is about two thirds full of splashing water right in the area where they are supposed to be.
Plot hole: Right before Bond hops on the moving camera globe to go blow up the barrier to the control room on the Liparus, they show a shot of one of the firing slots on the control room open and the guards firing at Bond. Through the port, you can see that Bond is on the catwalk above the walkway to the barrier. But when Bond climbs down onto the camera globe, and when he's sliding back on the track, nobody fires a shot, even though he's now in a direct line of fire with those firing ports and the guards have a totally clear shot at him.
Other mistake: When Bond shoots Stromberg down the barrel of the undertable spear gun, his PPK visibly suffers from a stovepipe jam (the blank round becoming stuck in the ejection port) twice, possibly due to a repeat shot. However Bond is then seen firing several more shots into Stromberg without clearing the jam.
Visible crew/equipment: As Q stops the Lotus for Bond, the orange car that followed Q off the ferry passes in front of the camera. As it does, the camera and crewman are reflected on the car's glass.
Continuity mistake: When Bond is waiting to meet Stromberg he notices the remains of the women killed at the beginning by the shark, but the tank with the shark in has nothing in it but water and the shark. The tank Bond is looking at has coral and other fish in it.
Factual error: When the two missiles blast out of the water, the first thing you see is the glare of the rocket motors under water. SLBMs rise out of the water solely on the air or steam pressure impulse that propels them out of the launcher. The rocket motors ignite only after the missile has left the water completely. (01:43:20)
Revealing mistake: During the ski chase, just after Bond has shot Sergei Barsov, you can see several red and white overhead lights behind him.
Continuity mistake: When we see Stromberg's living room from the inside, there is very little space between the windows, and the corner column is very narrow. But when we see it from the outside (when the Helicopter is taking off) there is more then 2 meters between the windows.
Continuity mistake: When Stromberg raises his 'house' from the sea, in the first shot where the paintings slide up, you can see the water's surface in the top of the window. But in the next clip, exterior shot, the house is still fully submerged. And based on the size of the house and the location of Stromberg's living room, his windows must have been 10-20 meters below the surface in the first situation.
Answer: First, it was indeed filmed at Karnak. Second, he rescues her because they are, for the time being, on the same side-therefore, she is an ally, and Bond won't just leave her to drown/die. I think, if he is even mindful of her promise during the heat of the moment, he would still consider it wrong to leave her behind; while the mission is on, she's a colleague in distress, and that's that. Once the mission is over, she can do what she likes, and Bond will deal with it then. (Though his surprise when she first draws the gun on him in the escape pod suggests he wasn't taking her threat seriously, so...bit of a freebie for him).