Pokémon the Movie: I Choose You! (2017)
This is the story of how Satoshi and Pikachu first met. At first, Pikachu was disobedient towards Satoshi, but Satoshi only wanted to be friends with Pikachu. On the day they set out from Masara Town, both of them saw a Ho-Oh flying and they made a vow to meet it.
Writer: Shoji Yonemura
Dr. Okido / Narrator (voice)