Other mistake: In the plane, when Bond fights Goldfinger, one of the henchmen is partially visible behind Goldfinger when he appears from behind the curtain. When the fight starts, the henchman's arm is also visible. When the fight is over and just before Bond moves to the cockpit, the henchman is lying on the floor with no explanation for why he was not sucked from the plane like Goldfinger.
Other mistake: When Papa Boule kicks Labiche off his train and tells him to throw the switch (turnout) Labiche actually operates one behind the train, not in front of it.