As of my knowledge cutoff date in September 2021, there has been no episode of the One Piece anime that shows Luffy using Gear 5. Gear 4, also known as Boundman, is the highest level of Gear that Luffy has demonstrated in the anime. It's possible that future episodes or chapters of the One Piece manga may reveal a Gear 5, but as of now, it has not been shown in the anime. **

You can watch any of the 14 One Piece movies that have been released so far. These movies are standalone stories that feature the characters from the One Piece anime and manga series. Some of the popular movies include "One Piece: Strong World," "One Piece Film: Z," and "One Piece Film: Gold." Each movie offers a new adventure for the Straw Hat Pirates and is a great way to enjoy more of the One Piece universe. **

One can watch One Piece movies by purchasing or renting them through various online platforms such as Amazon Prime Video, Google Play Movies, or iTunes. Some streaming services like Crunchyroll or Funimation may also have the movies available for viewing. Additionally, the movies may be available on DVD or Blu-ray for purchase. **

Fans of the One Piece series should definitely watch "One Piece: Strong World" and "One Piece: Film Z" as they are considered some of the best movies in the franchise. Additionally, "One Piece: Stampede" is another highly recommended movie that celebrates the 20th anniversary of the series and features many beloved characters. These movies not only have exciting action sequences but also delve deeper into the characters and their relationships, making them a must-watch for any One Piece fan. **

One can watch the One Piece movies at any time, as they are available for streaming or purchase. The movies are not directly tied to the ongoing storyline of the One Piece anime or manga, so they can be enjoyed independently of the main series. Additionally, some of the movies have been released in theaters in Japan and other countries, providing fans with the opportunity to see them on the big screen. **

You can watch the One Piece movies on various streaming platforms such as Netflix, Hulu, Crunchyroll, and Funimation. Additionally, you can also find the movies available for purchase or rental on platforms like Amazon Prime Video, Google Play, and iTunes. Keep in mind that availability may vary depending on your location and the specific movie you are looking for. **

One can watch movies of One Piece by streaming them on popular platforms like Crunchyroll, Funimation, or Hulu. Additionally, the movies can be purchased or rented on digital platforms like Amazon Prime Video, Google Play Movies, or iTunes. Some movies may also be available for purchase on DVD or Blu-ray. **

One can watch movies from One Piece by subscribing to streaming platforms that offer the movies, such as Crunchyroll or Funimation. Another option is to purchase or rent the movies from online platforms like Amazon Prime Video or iTunes. Additionally, some movies may be available for free on certain websites, although the legality of these sources may vary. **