Thank you so much for this utterly precious doc!! I will add this link to the selection I´m making for a posting on my two edublogs on a relaged subject.
At 6:16, an early sketch of Merlin's models of what he's seen by looking and even traveling into the future. A locomotive and an airplane which we see in the movie. But also a car, a ship, a tank, a submarine, a rocket, a cannon, a blimp and a crane. They really should've had more than just the plane and the locomotive in the movie.
I also remembered that this movie is on Disney plus. But on the DVD are 2 bonus cartoons that are Disney plus. The 2 cartoons are the Goofy cartoon A Knight for a day and the nominated Mickey Mouse cartoon Brave Little Tailor.