From July 5th, 2019 until September 30th, 2019, a campaign to commemorate the release of the movie "Mewtwo Strikes Back Evolution" is being held by Pizza Hut in Japan through their Pizza Delivery service! If you order a medium sized pizza, you will receive a pizza in a box with an original movie design featuring Mew and Mewtwo.
Source:
https://pizzahut.jp/topic/pokemon_movie_mew2