The official Pokémon movie website has updated. Translations follow:
Lake Sagami Pleasure Forest Will be Holding a Pokémon Movie Tie-in Event
The "Pokémon Adventure 2019" will be held at Lake Sagami Pleasure Forest in Sagamihara, Kanagawa
to celebrate the movie's premiere!
The Pokémon Adventure is an adventure game that lets you experience the characteristic world of "Mewtwo Strikes Back Evolution".
Visit various places in the resort and attempt the trials issued by Mewtwo!
If you clear the trials, you'll receive an original Pokémon Adventure post card!
In addition, Pikachu will be there as well on Saturday July 20th and Sunday July 21st!
Event period: Saturday July 6th to Sunday September 1st
The Pikachu greetings will be held on Saturday July 20th and Sunday July 21st
Location: Lake Sagami Pleasure Forest
1634 Wakayanagi, Midori, Sagamihara, Kanagawa 252-0175
Click here for details:
https://www.sagamiko-resort.jp/pokemon2019/
Source:
https://www.pokemon-movie.jp/news/?p=3708