If you loved Detective Conan: Private Eye in the Distant Sea, try Detective Conan: The Darkest Nightmare
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

Detective Conan: Private Eye in the Distant Sea
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Detective Conan: The Darkest Nightmare
What they share
Both films are directed by Kobun Shizuno, and they both carry the paranoid mood tag, and they sit in Action / Animation territory. If that's the register that drew you to Detective Conan: Private Eye in the Distant Sea, the second film will land in a comparable space — through a different lens.
paranoid
What Detective Conan: The Darkest Nightmare is
Tokyo nighttime streets, screeching tires, a spy's getaway car. A high-speed chase ensues between the spy and public safety officers. This anime thriller unfolds with Kobun Shizuno's signature action.