Thirteenth Movie Preview reveals plot involving Ho-oh and Lugia.

[Winter]

So how do you capitalize upon the future success of your next two games? Make a movie about them of course. A limited screening of the twelfth movie showed a preview of Movie 13 involving Ho-oh and Lugia due out in theaters in Japan in summer 2010.

[FreezeWarp]

Interesting. You will remember that back in the Johto sega we never actually saw a movie about Ho-Oh at all; one for Lugia before the sega, one about Entei and the Unknown, one about Suicune and Celebi, and one about Latios and Latias, again before the Hoenn sega.