Cowboy Bebop: The Movie, known in Japan as Cowboy Bebop: Knockin' on Heaven's Door (Japanese: カウボーイビバップ 天国の扉 Hepburn: Kaubōi Bibappu: Tengoku no Tobira, lit. Cowboy Bebop: Heaven's Door), is a 2001 Japanese animated space Western action film based on the 1998 anime series Cowboy Bebop created by Hajime Yatate. Multiple staff from the original series worked on the film, including director Shinichirō Watanabe, writer Keiko Nobumoto, character designer Toshihiro Kawamoto, and animation director Hiroshi Ōsaka, and composer Yoko Kanno. The original English and Japanese voice cast also reprised their roles.