Revealing mistake: When Bond is in the car following the goons heading into the facility, it shows the techie guy scan a card and then swipe it to open a door. Before he swipes it, the door is already opening. (01:13:15)
Visible crew/equipment: Watch for the boom when the cigar girl's Volvo boat swipes the building (it's on the top left of the screen on the widescreen version).
Plot hole: When Bond and Tibbett break into the underground lab and find the device which drugs the racehorses, you can see that it has a large light emitting diode (LED) on the top of it. What possible use would that be, since the device is implanted in the horse's leg, and is supposed to be covert? (00:37:20)
Other mistake: In the scene when the helicopters arrive over the research center, look at the heli in the bottom right - it just fades out, while one on the left materialises, and the one in the middle changes position. Notice that after all the helicopters have changed place, you can see the helicopter that faded out appear on the helipad (02:25:25)
Continuity mistake: Bond sits down by a table, puts some cards down, and pulls his gun out. He's wearing a tie, but when we see a closeup of him screwing on the silencer, his tie disappears. (00:54:40)
Factual error: When we first see Fatima Blush she is waterskiing. She is doing several stunts which are only possible with one ski, the most notable being skiing backwards with one foot in the air. But when she releases the tow rope and skis up the ramp into James Bond's arms, she is on two skis. (00:45:55)
Continuity mistake: In the scene where Drax's assistant, Corine Dufor, is being pursued to her death by his doberman dogs, she starts off with bare legs and high heels, but a couple of seconds later she's now wearing trainers and blue socks.
Visible crew/equipment: After Bond received a lighter from Felix and Della, he uses it and the flame is big. In the beginning and the end, you can see a tube is connected to the lighter and the tube goes into his suit. (00:15:00)
Deliberate mistake: The famous car chase ends with Bond's car tipping up on its right wheels to fit through a pedestrian path. However, when it emerges the other side, it's tipped on its left wheels. When the car enters the alley this was filmed in a studio. When the car exits the alley this was filmed in Vegas. The first few times the exit was filmed the car emerged on the correct wheels but the shots were unusable because of the crowds in the background watching the filming. This shot was temporarily abandoned and eventually re-filmed with a different stunt driver who famously performed the stunt on the wrong wheels. Realising this, the producers filmed a somewhat clunky insert shot featuring a close-up of Sean Connery and Jill St John which shows the car tip back onto four wheels and then up onto the opposite two wheels, even though the alleyway would be too narrow to manage this.
Continuity mistake: When James has just jumped out of the plane, he has a diving rig that is somewhat different to the one he has when diving on the wreck of the Devonshire. In the water he wears a twinset manifold air-bottle rig. While skydiving the rig was not manifolded and the bottles were in a different position on his back. To change between the two requires some work with a tool kit, preferably on dry land.
Continuity mistake: When JB is driving the truck and is being bombed with grenades from the helicopter the truck gets smoke blackened, but when he arrives at the speedboat all the smoke marks have gone.
Continuity mistake: When Bond has his final confrontation with Whitaker, he empties his PPK at him in an attempt to take him down. In the process, he hits the gunshield on Whitaker's weapon five times, and it remains clean. But when Whitaker rounds the corner a few seconds later, the impacts from the PPK bullets are suddenly visible on the shield's surface.
Continuity mistake: In the scene where Stromberg is thanking Dr Bechman and Professor Marcovitz he he has a towel in his hand. When the camera changes to another angle that shows the back of his chair his hands are totally empty and resting on an arm of the chair. Then it changes back to the original camera angle and he now has a towel in his hands again.