Pokémon: The First Movie is the reason Mewtwo is in Detective Pikachu - Polygon

Pokémon: The First Movie: Mewtwo Strikes Back arrived in 1998. More than 20 years later, the story of Ash, Pikachu, Mew, and Mewtwo has new resonance as the Pokémon come to live in live-action while keeping Pokémon game and anime canon alive.

Pokémon Detective Pikachu Director on How Mewtwo Connects to Kanto - IGN

POKEMON DETECTIVE PIKACHU Trailer Breakdown! Mewtwo Theory & All Pokemon Found!

Pokemon's first live-action movie 'Detective Pikachu' latest trailer released, Pikachu's intense arrest burst - GIGAZINE

Detective Pikachu Makes Sneaky Reference To First Pokemon Movie

Detective Pikachu post-credit scene : r/pokemon

Pokemon's first live-action movie 'Detective Pikachu' latest trailer released, Pikachu's intense arrest burst - GIGAZINE

Pokémon Journeys: The Series (TV Series 2019– ) - News - IMDb

The Stunning Transformation Of Pokemon

Pokémon Detective Pikachu Director on How Mewtwo Connects to Kanto - IGN

Mewtwo - Wikipedia

In Detective Pikachu 2019, Tim tell Detective Pikachu to run during the arena battle but he is unable to. This is because there is no running from a trainer battle. : r/MovieDetails

Pokémon: The First Movie is the reason Mewtwo is in Detective Pikachu - Polygon

Mewtwo (Detective Pikachu 12) - Bulbapedia, the community-driven Pokémon encyclopedia