Also a brief look at the Klefki short
Here's some pretty but unremarkable footage from the upcoming 17th Pokemon movie Cocoon of Destruction.
Members of an old folks' home suddenly feel lively and not like dying after discovering the rejuvenating powers of alines -- erhm, Pokemon -- that had long ago been displaced, their home destroyed. Of course, nefarious people want to harness this power for evil and it's up to Ash, played by Steve Guttenberg, to stop them, using the power of friendship and Mega Evolutions, probably.
I may have mixed up some details with the movie Cocoon.