If you loved RahXephon: Pluralitas Concentio, try Space Battleship Yamato 2199: Odyssey of the Celestial Ark
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.
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RahXephon: Pluralitas Concentio
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Space Battleship Yamato 2199: Odyssey of the Celestial Ark
What they share
Both films are directed by Yutaka Izubuchi, and they both carry the epic, mindfuck mood tags, and they sit in Animation / Science Fiction territory. If that's the register that drew you to RahXephon: Pluralitas Concentio, the second film will land in a comparable space — through a different lens.
epicmindfuck
What Space Battleship Yamato 2199: Odyssey of the Celestial Ark is
You pilot the space battleship Yamato, fleeing the Large Magellanic Cloud, but a mysterious group emerges. The Gatlantis leader demands your ship. Director Yutaka Izubuchi sets this tale in a futuristic galaxy.