The official movie website has updated with the twelfth part of Director Yuyama's scouting report. Translations follow:

This time, Director Yuyama chose Canada as the country he would go scouting in. He went there in search of the landscapes where Yveltal would sleep, where Xerneas would hide, and Diancie would journey.



The scouting team stayed their third night at a hotel close to the Niagara Falls. The fourth day, we finally set off to the falls themselves. Unfortunately, it was raining slightly that day, though of course there was little point worrying about that; we had been warned in advance we would end up drenched when visiting the falls anyway.

We started off with a ride on a ship that allowed us to look straight up at the falls from below. The ship was called the Maid of the Mist, and when we boarded it, we were given flashy pink ponchos to wear before the ship set off.

They say 3000 tons of water flows through the Niagara Falls every second, and as we got closer, giant waves sprayed water all over. The ship shook violently, and we were desperately trying to avoid both losing the camera and getting wet while we were collecting footage.

For earlier parts, please go here: Movie 17 Scouting Report

Source: http://www.pokemon-movie.jp/locahan_report/