One Piece Films is an ongoing anime series that started in 2000. So far 15 episodes of One Piece Films have been aired. With a total of 11 reported filler episodes, One Piece Films has a very high filler percentage of 73%. Monkey. D. Luffy refuses to let anyone or anything stand in the way of his quest to become the king of all pirates. With a course charted for the treacherous waters of the Grand Line and beyond, this is one captain who'll never give up until he's claimed the greatest treasure on Earth: the Legendary One Piece!