Cowboy Bebop: The Movie (カウボーイビバップ 天国の扉 Kauboi Bibappu Tengoku no Tobira), also known as Cowboy Bebop: Knockin' on Heaven's Door, is an anime movie based on the Cowboy Bebop anime series. The movie's plot involves the release of a mysterious virus into the center of a large city and the Bebop crew's attempts to claim the obligatory huge bounty (300 million woolongs) associated with the capture of the villains behind the virus' release. The movie's theme is to answer the question: "Are you living in the real world, or is what you are seeing just part of a dream?"
From
Wikipedia