Plot hole: Near the end of the film Drax tells Bond he had his own shuttle hijacked because he needed it after another shuttle malfunctioned. OK then why didn't Drax just contact whoever he needed to before the Moonraker left on the 747 and have the working shuttle returned to his base before it left. He obviously had the time to get two of his people hidden in the shuttle so a few phone calls would have fixed his problem and the British government would have never had to involve Bond at all.
Revealing mistake: During the skydiving scene, Jaws' stuntman is obviously different. Jaws appears to have a light skin complexion and be large in physique as normal but the stuntman has a tan skin color and is smaller in physique.
Plot hole: After the six shuttles take off, there are obviously dozens, if not hundreds of Drax' minions left behind in the base. Not regular employees, but the kind that knows what's coming, if only because Drax is obviously talking about it, e.g. to Bond, quite openly. Would they just stoically stay behind to be gassed? One would think they would mutiny and rush the shuttles wouldn't one?
Suggested correction: No reason they couldn't have been brainwashed into obeying Drax like here was a god. Further, for all we know, the base could have secure facilities for the employees, who have been sterilized, doubtlessly, to wait until the gas in the atmosphere has dispersed sufficiently. Drax needs ground personnel to enable people to land on Earth later on.
If you have gas-tight bunkers on earth, the whole exercise of taking everybody to orbit would be a bit pointless, wouldn't it?
But Drax has a god complex: he wants to stay in his "untainted cradle of the heavens", instead of the planetary surface. Not to mention, just in case something goes wrong with the Amazon bunker, his master race will be safe and secure in the orbit.
Plot hole: The British government sends its best agent to the headquarters responsible for a missing shuttle, and Drax immediately wants to kill the man sent to talk to him. Surely Drax would have been smart enough to know if he had Bond killed both the American and British governments would have investigated him, even if he could chalk up Bond's death as an accident.
Suggested correction: So the villain not killing Bond is a mistake, the villain killing Bond is a mistake too? Like in all spy movies, killing the best agent would win Drax a lot of time to further his plan and eliminate evidence, even if the American and British government will investigate. With Bond dead and the government unable to prove anything for now, Drax is surely not worse off than with a very curious and suspicious agent searching through his hideout now and finding out possibly even more.
Visible crew/equipment: When Bond's stuntman fights by the plane's door, Bond's jacket has a protruding bulky object which is obviously a security mechanisms of some sort.
Revealing mistake: When Bond hits the button to throw the space station out of its gravity and sends everyone out of position look at the command console manned by the two Drax henchmen, the prop used for the console laughably moves back and forth during the commotion.
Continuity mistake: When Bond is looking at the airport through the telescope in Rio he sees the Drax cargo plane coming down the runway but just seconds before in the wide shot of the whole airport there is no plane on the runway or anywhere near it.
Revealing mistake: When Jaws brings Bond and Holly to the command center of the space station Drax is sitting down in his chair then suddenly in the next shot he's standing without having moved.
Continuity mistake: Bond manages to shut off the gravity in the whole station, but when the bad guys begin their battle with the Marine astronauts the bag guys are walking towards the airlock hatch as if they have full gravity.
Audio problem: When Drax greets Bond on the island, as he's saying the part about the snake, you hear him talk, but his mouth isn't moving.
Revealing mistake: When the passengers disembark from the shuttle the camera appears to be on the side of the space station, but look at the stars on the bottom of the screen - they are moving a lot faster than the stars on the top of the screen, both sets of stars should be moving at the same speed.
Continuity mistake: When Bond throws the chain over the cable there are two handles attached to the chain, but when they slide away the handles on the chain are gone.
Revealing mistake: When the shuttle ejects the engines you can see the support wires used to pull off the boosters.
Revealing mistake: During the boat chase with Jaws the close up of Bond driving the boat reveals at the bottom of the screen part of the camera rig holding the camera in place. In other long shots these brackets are missing from the boat.
Revealing mistake: During the shooting in the space station, Holly and another guy jump in a ditch and start shooting at the baddies. Seconds later the same shot is repeated. (01:53:15)
Revealing mistake: When Bond is underwater struggling with a python he is replaced by an obvious stuntman. (01:23:15)
Continuity mistake: When Bond's gondola goes under a bridge an encounters the hearse, the canal they're in changes completely. The street on the right disappears and is replaced by a brick wall.
Continuity mistake: When Bond arrives to Venice he grabs a card from Venini Glass. From the immediate opposite angle the cards is gone.
Visible crew/equipment: After Bond/Roger Moore's stuntman throws the pilot out of the plane, a safety bar connecting the plane and the stuntman's body is noticeable.
Visible crew/equipment: When the pilot aims a gun at Bond, there's a black bulky object reflected (filming crew or equipment) on the ice cube which disappears in the opposite shot.
