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: In the scene when the Zulu warriors have broken through the roof in the hospital. The British make a hole and escape through it. You can clearly see the hole that they are going to cut open because it is a different color.
Other mistake: In the final gunfight when Joe shoots the gun from Ramon's hands and kills the rest of his gang, he fires six shots. He then shoots the rope that Silvanito has been tied up to without reloading. His gun is a revolver, which only holds six bullets, yet Joe fires seven times.
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.