Cowboy Bebop: The Movie - Knockin' on Heaven's Door

As the Cowboy Bebop crew travels the stars, they learn of the largest bounty yet, a huge 300 million Woolongs. Apparently, someone is wielding a hugely powerful chemical weapon, and of course the authorities are at a loss to stop it. The war to take down the most dangerous criminal yet forces the crew to face a true madman, with bare hope to succeed.

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Patlabor: The Movie 81%

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Its slow-burn conspiracy and rain-soaked urban noir mood echo the melancholy tension you loved in the crew's final showdown.

Trigun: Badlands Rumble 79%

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Expect the same gunslinging bounty-hunter banter and bittersweet undertone, just with Vash's sunnier grin instead of Spike's cool.

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You get the same wandering-space-crew rhythm and oddball philosophy, though it leans much goofier episode to episode.