About One Piece
One Piece (Japanese: ワンピース, Hepburn: Wan Pīsu) is a Japanese shōnen manga series written and illustrated by Eiichiro Oda. It has been serialized in Shueisha’s Weekly Shōnen Jump magazine since July 22, 1997, and has been collected into 96 tankōbon volumes as of April 2020. The story follows the adventures of Monkey D. Luffy, a boy whose body gained the properties of rubber after unintentionally eating a Devil Fruit. With his crew of pirates, named the Straw Hat Pirates, Luffy explores the Grand Line in search of the world’s ultimate treasure known as “One Piece” in order to become the next King of the Pirates.
The manga spawned a media franchise, having been adapted into a festival film produced by Production I.G, and an anime series produced by Toei Animation, which began broadcasting in Japan in 1999. Additionally, Toei has developed fourteen animated feature films, one original video animation and thirteen television specials. Several companies have developed various types of merchandising and media, such as a trading card game and numerous video games. The manga series was licensed for an English language release in North America and the United Kingdom by Viz Media and in Australia by Madman Entertainment. The anime series was licensed by 4Kids Entertainment for an English-language release in North America in 2004, before the license was dropped and subsequently acquired by Funimation in 2007.
One Piece has received praise for its storytelling, art, characterization, and humor. Several volumes of the manga have broken publishing records, including the highest initial print run of any book in Japan. The official website for Eiichiro Oda’s One Piece manga announced that the manga has set the Guinness World Record for “the most copies published for the same comic book series by a single author”. As of April 2020, the manga had over 470 million copies in circulation in 43 countries worldwide, making it the best-selling manga series in history. It became the best-selling manga for the eleventh consecutive year in 2018. One Piece is one of the highest-grossing media franchises of all time, estimated to have generated more than $21 billion in total franchise revenue, from the manga, anime, films, games and merchandise. 
About One Piece Movies
The One Piece Movies are theatrical films produced and released by Toei Animation. While generally made with the same cast and crew as the TV anime, they tend to boast much higher production values and animation quality.
Initially, these movies were released annually as part of Toei’s springtime ‘Anime Fair’ events, always as a double feature with various Digimon films. After the third movie (released in 2002), Toei discontinued the fair, and all subsequent movies were produced as standalone features (with the exception of the eleventh movie, released as a double feature with Toriko 3D Movie: Kaimaku! Gourmet Adventure!! for Toei’s 2011 ‘Jump Heroes’ event).
Most of the movies have completely original stand-alone plots set broadly around the contemporary story arc, but movies 8 and 9 directly adapt storylines from the manga. For the first nine movies, Eiichiro Oda was not involved in the films any more than other anime projects; This changed with the production of movie 10, for which Oda wrote the story and served as Executive Producer. Oda would also be heavily involved in movies 12 and 13, all three of which carried the subtitle ‘One Piece Film’.
Three of these movies had shorts accompanying them: The Adventure on Clockwork Island with Jango’s Dance Carnival, Chopper’s Island of Strange Animals with Dream Soccer King, and The Curse of the Sacred Sword with Take Aim! The Pirate Baseball King.
Several movie-length TV Specials have also been produced by Toei.
One Piece Movies List
1. One Piece: The Movie
After a chance encounter with a trio of thieves, the Straw Hat Pirates find themselves at odds with Eldoraggo, a ruthless pirate empowered by a fearsome Devil Fruit and obsessed with gold like few others. Eldoraggo’s ultimate goal: a myth-shrouded isle where the legendary Captain Woonan was said to have hoarded gold beyond imagining.
With the help of an old vendor and his grandson – perhaps the last living links to Woonan – the Straw Hats must overcome Eldoraggo and his crew, and discover the secret of Woonan’s greatest treasure for themselves.
2. Clockwork Island Adventure
In pursuit of a stolen Going Merry, the Straw Hat Pirates join forces with the Thief Brothers, a pair of mismatched rogues with designs on the wondrous – but deadly – Clockwork Island. Soon, an all-out war erupts between them and Clockwork Island’s reigning pirate clan, whose tyrannical captain Bear King schemes to not only conquer the seas with a fearsome superweapon, but take Nami as his bride by any means necessary.
3. Chopper’s Kingdom on the Island of Strange Animals
Tales of a glorious treasure lead the Straw Hat Pirates to Crown Island, a lush wilderness filled with animals that can think like men. By a stroke of fate, Tony Tony Chopper is separated from his crewmates, and inadvertently fulfills a prophecy heralding the island’s lord and protector, the King of Beasts.
Now revered by the island’s inhabitants – particularly a pirate-hating boy named Mobambi – Chopper finds himself torn between his new “kingdom” and his place with the Straw Hats. In time, however, all of them are swept up in the machinations of Count Battler, a greedy invader hunting for the treasure through the bloodiest means imaginable.
4. Dead End Adventure
Desperate for cash, the Straw Hat Pirates enter a secret race between pirate crews known as the Dead End Competition. There, they must battle against powerful people, including a former Marine-turned-pirate, Captain Gasparde, and the bounty hunter who wants to kill him. However, with Gasparde’s deadly scheme, are all of his opponents doomed from the start?
5. The Cursed Holy Sword
On Asuka Island, the Straw Hat Pirates learn about the Shichiseiken, considered the world’s most beautiful sword and a valuable treasure, though it contains a deadly curse. When they come back to the ship, they find that Zoro, who was to act as guard, is missing, but they are forced to leave port when they are attacked by Marines. They dock in another section of the island and come across a village, whose job it is to keep the Seven Stars Sword sealed. It is soon attacked by Marines who are trying to free the sword—among whom is Zoro! What reason could Zoro have for doing this? What is the secret of the sword? Why would Marines want it? The answers lie on the night of the red moon.
6. Baron Omatsuri and the Secret Island
The Straw Hats receive an invitation to an island resort on Omatsuri Island. They decide to go as a break from their adventures and to have some fun. But once they get there, they are conned into participating in ridiculous challenges by the Baron of the island. Luffy is eager to prove that his crew are “pirates of pirates of pirates of pirates” and agree off the bat. But is it really worth it?
There’s something strange about the Baron and the people of the island. And when the game starts, events start to crumble the crew’s camaraderie. And one by one, each member goes missing…
Chance meetings with a pirate family and a former pirate captain unravel a few of the mysteries on Omatsuri Island, particularly one that interested Robin about Omatsuri Island’s special flower ― the Lily Carnation.
7. The Giant Mechanical Soldier of Karakuri Castle
Having recovered a treasure chest from a sinking ship, the Straw Hat Pirates can not wait to see what riches await them inside. Instead of treasure, they pulled out an old lady. Anxious to get back home (and avoid Nami’s wrath for having thrown out the treasure previously in the chest), the old lady offers a great treasure reward if the crew will return her to her home on Mecha Island. Her legend of the Golden Crown sounds too good to be true. Luffy smells adventure, so the crew has no choice. On an island full of amazing inventions, the crew will test their riddle-solving skills—and Luffy’s instinct—to solve the mystery of Mecha Island and its treasure.
8. Episode of Alabasta: The Desert Princess and the Pirates
The Straw Hat Pirates travel to Alabasta, the desert island and home of Nefertari Vivi. They find the country in the middle of a revolution. Crocodile, the country’s hero, secretly used his criminal organization Baroque Works, to undermine the citizens trust in Cobra, Vivi’s father and head of the Kingdom of Sand, in order to seize the throne and the country’s hidden secret for himself. The crew now has to cross the desert, stop the revolution, save thousands of lives from the Baroque Works hidden bombers, and most of all, defeat Crocodile, one of the mighty Shichibukai.
9. Episode of Chopper Plus: Bloom in Winter, Miracle Sakura
It is the second film to focus on Chopper (after the third film), as it is a retelling of the Drum Island storyline from the manga.
10. One Piece Film: Strong World
East Blue in crisis? The news hits the Straw Hat Pirates along their journey. With their hometowns facing a pinch, Luffy and his friends put their adventures on hold and decide to head back to East Blue, when suddenly a mysterious flying pirate ship appears out of the sky. The man heading that ship is none other than the infamous Devil Fruit user, Golden Lion Shiki, the same legendary pirate who managed to escape the great undersea prison Impel Down, and stood among such infamous pirates as the “Pirate King” Gol D. Roger and Whitebeard. After abducting Nami for her intuitive navigational skills, Shiki sends Luffy and his crew hurdling down to his own personal floating islands. Separated, the crew finds themselves placed in a battle of survival with terrifying beasts in mysterious surroundings.
11. One Piece 3D: Straw Hat Chase
The entire Straw Hat crew began to search for Luffy’s important straw hat after he wakes up to find it missing. Meanwhile, Usopp and Chopper, while exploring a ship that seemed to be empty, happened to find a pirate who was sick and decided to treat him back on their Thousand Sunny. A bird was seen holding onto Luffy’s hat and the crew began to give chase. Now, the Straw hats wants to get back Luffy’s hat; as well as overcoming obstacles such as the unexpected Marines and Sea Kings.
12. One Piece Film: Z
Said to be comparable to the Ancient Weapons, the Marines’ trump card the “Dyna Stones” have suddenly been stolen and the terrifyingly powerful man responsible, former Marine Admiral “Z”, stands in the path of the Straw Hat Pirates.
The Marine Headquarters finally moves forward to deal with the conspiracy that threatens to shake the very pillars of the New World, and Kuzan encounters the Straw Hat Pirates in the New World. Finally, Luffy and his crew move to take a stand against Z and his incredible power.
13. One Piece Film: Gold
Set in Gran Tesoro, an independent country chartered by the World Government, home of the world’s greatest entertainment city where well-known pirates, Marines, and millionaires throughout the world gather in an “absolute sanctuary” that even the World Government cannot touch.
There, the Straw Hat Pirates meet the ruler of the country, the golden emperor, Gild Tesoro, who easily wins pirates, the Marines, and even the World Government over to his side with money. He is about to take action to satisfy his bottomless ambition which may result in major changes in power relationships in the New World
14. One Piece: Stampede
The movie takes place during the Pirates Expo, “made by pirates, for pirates”, where pirates all over the world, including some of its most infamous ones, join in for a big treasure hunt to find a lost treasure, this time the treasure belonged to none other than Gold Roger!
List Of All One Piece Movies
- One Piece: The Movie
- Clockwork Island Adventure
- Chopper’s Kingdom on the Island of Strange Animals
- Dead End Adventure
- The Cursed Holy Sword
- Baron Omatsuri and the Secret Island
- The Giant Mechanical Soldier of Karakuri Castle
- Episode of Alabasta: The Desert Princess and the Pirates
- Episode of Chopper Plus: Bloom in Winter, Miracle Sakura
- One Piece Film: Strong World
- One Piece 3D: Straw Hat Chase
- One Piece Film: Z
- One Piece Film: Gold
- One Piece: Stampede
Source – Wikipedia  , One Piece Fandom