If you loved Tsubasa Chronicle The Movie: The Princess in the Birdcage Kingdom, try One Piece: Romance Dawn Story
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

Tsubasa Chronicle The Movie: The Princess in the Birdcage Kingdom
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One Piece: Romance Dawn Story
What they share
Theysit in Action / Adventure / Animation territory. If that's the register that drew you to Tsubasa Chronicle The Movie: The Princess in the Birdcage Kingdom, the second film will land in a comparable space — through a different lens.
What One Piece: Romance Dawn Story is
Here's an origin story no one asked for. Luffy, sent out for groceries, botches the task when he gets lost. A young girl named Silk then vows to defend her treasure from pirates. Serves its purpose, I suppose, for those keeping score at home.