Over its many years, the One Piece franchise has spawned a litany of movies of varying quality. The adventures of protagonist Monkey D. Luffy and his crew are some of the most iconic and recognizable in anime, but their quality seems to vary greatly. Fans may also wonder "Which One Piece movies should I watch?", and they may be surprised by how quickly this thins out the catalog of One Piece tie-in movies.
Source：https://www.cbr.com/one-piece-movies-worth-watching-skip/
