Continuity mistake: In the first shots of the golf course, you see Goldfinger's Rolls parked to the far left of the main building, with Bond's car in the lot in the background. When the scene changes to the inside of the clubhouse store, the Rolls is now very close to the front of the store. At the end of the golf game, the Rolls is back to the left of the main building, and as the camera pans back, you can see that the store is to the far right of the main building.
Continuity mistake: Right at the end, the insurance man gives Charlotte Jewel Mayhew's letter and in the next shot of him, his hands are empty. But in the following shot he's holding the letter again.
Continuity mistake: Marnie's sweater changes after she gets on her horse.
Continuity mistake: In the train yard scene when Le Biche and Colonel Von Windheim are watching for the trains to switch to the right tracks a pipe is tossed onto a chair and tobacco spills out, but when the camera is panned away and comes back the tobacco is nowhere to be seen.
Continuity mistake: There is only one bomber left in the air. Yet the SAC command center display shows three bombers. (01:37:30)