https://wccftech.com/detective-pikachu-comes-to-pokemon-go-today/

Just before Detective Pikachu hits the theatres this week, Pokémon Company International, Niantic Inc, Warner Brothers Pictures, and Legendary Pictures, have collaborated to announce a variety of movie-inspired in-game activities and content for Pokémon GO.

Some of the content includes Pikachu wearing a detective hat, encounters with select Pokémon featured in the film, special Raid Battles and Field Research, and more. J.C. Smith, senior director of consumer marketing at The Pokémon Company International had the following to say