What is the title of the first Pokémon feature film?

The first Pokémon feature film is titled Pokémon: The First Movie.

Its full English title is Pokémon: The First Movie – Mewtwo Strikes Back. The film centers on Mewtwo, a genetically engineered Pokémon who questions its origin and challenges humans and other Pokémon.

The movie premiered in Japan on July 18, 1998, under the title Mewtwo Strikes Back. It later received a major theatrical release in North America in November 1999, where it was marketed with the subtitle Pokémon: The First Movie.

A short film called Pikachu’s Vacation accompanied many theatrical screenings. The franchise later produced numerous animated films, but Mewtwo Strikes Back remains the first feature-length Pokémon movie.