If you loved Zone of the Enders: Idolo, try Neon Genesis Evangelion: Death and Rebirth
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

Zone of the Enders: Idolo
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Neon Genesis Evangelion: Death and Rebirth
What they share
Both films are directed by Tetsuya Watanabe, and they sit in Animation / Science Fiction territory. If that's the register that drew you to Zone of the Enders: Idolo, the second film will land in a comparable space — through a different lens.
What Neon Genesis Evangelion: Death and Rebirth is
Brooklyn meets Evangelion. A teenage pilot confronts an apocalyptic force but the real battle is the weight of his own mind. Neon noir and robot ballet collide in a fragile human story.