Mewtwo, upon acknowledging the selflessness of Ash's sacrifice, comes to the conclusion that one's actions determine who they are and not the circumstances of their birth. Soon after having this epiphany, Mewtwo and the clones are joined by Mew as they leave to find a sanctuary, with Mewtwo erasing all memory of the events from those gathered. In localizing the film for English-language audiences, Mewtwo's personality became more arrogant and megalomaniacal; localization director Norman Grossfield ruled the changes necessary, as he believed American audiences needed a "clearly evil" instead of ambiguous villain. In the film, Mewtwo is voiced by Philip Bartlett in English, and by Ichimura in Japanese. In this film, Mewtwo displayed unique abilities and powers unseen in other Pokémon, such as blocking all Pokémon moves in his arena when the clones face off against the originals.