If you loved One Piece: Jango's Dance Carnival, try Dragon Ball: Curse of the Blood Rubies
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
You already loved

One Piece: Jango's Dance Carnival
→
Try this next

Dragon Ball: Curse of the Blood Rubies
What they share
Both films are directed by Daisuke Nishio, and they both carry the playful, uplifting mood tags, and they sit in Animation / Comedy / Fantasy territory. If that's the register that drew you to One Piece: Jango's Dance Carnival, the second film will land in a comparable space — through a different lens.
playfuluplifting
What Dragon Ball: Curse of the Blood Rubies is
Here's a film that probably made sense to someone. A king wants the Dragon Balls so he can eat forever. Luckily, a brave young girl enlists Goku and friends to stop him. It's hard to argue with the purity of that goal.