M01
Also known as Pokémon The First Moive, it is the first of the Pokémon Movies.
The movie briefly held the record for highest-grossing opening for an animated film, until the release of Toy Story 2.
Mewtwo Strikes Back was shown with the Pikachu short movie "Pikachu's Vacation".
Synopsis
Giovanni, the leader of Team Rocket, has made a clone of the legendary, and very rare Mew. In his creation he has created Mewtwo.
Unsure for the reason of his origin Mewtwo has lured Ash Ketchum and other Pokemon trainers to battle. In spite of everything Mewtwo has captured and cloned every trainers Pokemon. Now it's a battle like no other.
Mew then appears and shows Mewtwo the meaning of being a Pokemon. Dispite the events that have happened, Mewtwo erases the memories of the trainers as well as the Pokemon... all but Giovanni.