According to early sources, Zekrom and Reshiram were played by different people: Michael Chobot and Tom Wayland, respectively. It was almost a month after the film was released that it was revealed that they were played by the same person: Marc Thompson.
Some American theaters gave away goody bags to anyone who went to see the film. The bags' contents included a movie sticker, a jumbo Victini trading card, the first chapter of the Black & White manga, and a code one could scan to get Victini in a Nintendo 3DS Pokedex game.
Victini as a Pokemon was created specifically for this film. This is the first time in the history of the franchise this has been the case; previously, any Pokemon stars in films were created first, and ideas for the films came afterwords.
In Japan, this was the first Pokemon film to be released without a preview for the next film shown at the end. In this case, the preview at the end was for the companion film, "Pokemon the Movie Black: Victini and Reshiram", which was already in theaters.
For most English countries, the DVD for this film was packaged with its sister movie, "Pokemon the Movie: Black - Victini and Reshiram." The only countries where this wasn't the case were Australia and New Zealand.