When you head to the theater on opening weekend, you can get a special promo card featuring Detective Pikachu.

https://www.pokemon.com/us/pokemon-news/get-a-pokemon-tcg-card-when-you-see-pokemon-detective-pikachu/?cid=tw:social:detectivepikachu:theaterpromocard&utm_source=tw&utm_medium=social&utm_campaign=detectivepikachu&utm_term=theaterpromocard