Pokémon: Detective Pikachu marks the first-ever live-action adaptation of the long-running media franchise, with a completely game Ryan Reynolds voicing the title character. Ahead of its release this Friday, we sat down with some of the cast and crew of the film for a trio of videos on all things Pokémon. Today, Reynolds explains how the genre-bending script, and some Deadpool-dubbed test footage convinced him to voice Pikachu.