Not only am I a fan of Phineas and Ferb and Adventure Time (that is a topic for another day) but I am also a fan of One Piece. It is probably my favorite anime of all time. I love the story, the characters, the animation and the action. It is one of those anime that gets better and better as it goes on. But that's my opinion of course.
Last year One Piece Film: Stong World came out to the US courtesy of Funimation and despite a few hiccups I have with it, I love the movie. it was action packed and the action scenes are amazing. It was a great One Piece Film.
And yesterday, they just announced that Funimation is gonna release the latest and what many fans consider the best One Piece movie, One Piece Film: Z. I can't wait to own a copy when it comes out. ^_^
Here is a link below that talks about the announcement: