There are three constructions we can put on the footage. One is an innocent exercise in being prepared. “Look here, old girl,” you can imagine the future former King saying, “I know you’re only seven, but in the highly unlikely event I end up abdicating after falling for an American hottie and your papa takes over, he’s not going to be around for ever. Herr Hitler’s talking about a thousand-year Reich, and these German chaps are notorious for being long-term planners, so there may come a time when you’ll be expected to greet the ambassador...” The darker cast of mind, on the other hand, will see this as evidence that the future former King Edward VIII was a sinister fifth-columnist who hoped to turn his niece into a fascist.