What is one piece movies canon?

The One Piece movies that are considered canon are:

  1. One Piece: Strong World - This movie takes place between the Thriller Bark and Sabaody Archipelago arcs. It is considered canon because the movie was written and supervised by the creator of One Piece, Eiichiro Oda.

  2. One Piece Film: Z - This movie takes place after the Fishman Island arc and before the Dressrosa arc. It is also considered canon because it was authored and supervised by Oda.

  3. One Piece Film: Gold - This movie takes place after the Dressrosa arc and before the Whole Cake Island arc. Like the other two canon films, it was written and supervised by Oda.

These movies are considered canon because they fit seamlessly into the One Piece timeline, with no inconsistencies or contradictions. They also introduce new characters, extended story arcs, and significant events that are referenced later in the manga and anime.