: After Pikachu repels the Spearow, Ho-Oh drops a "Rainbow Wing" for Ash. The movie follows his quest to find Ho-Oh at Mount Tensei, guided by the mysterious Pokémon Marshadow .
: The credits feature still images of all of Ash’s past traveling companions from the main series, confirming that even in this timeline, they exist elsewhere.
: Director Kunihiko Yuyama noted that the Spearow flock was scaled up for the movie; while there were 50 Spearow in the original 1997 episode, there are 1,000 in the film.
