- Marth Debuted in "Smash Bros.": Ann (The poofy green haired girl on the poster) actually showed up first in a live action show for a One Piece expo at Tokyo Tower in 2018. So naturally for those that likely never went to that, this film will mark her animated debut.
- Milestone Celebration: Released in celebration of the anime's 20th anniversary. Reportedly Oda refused to write it if it didn't.
Trivia / One Piece Stampede