Cowboy Bebop: Knockin' on Heaven's Door – or "The Movie" outside Japan – is an underrated work of art only marred by a few narrative blemishes. The fact it doesn't appear in conversations about the series shouldn't be taken as a sign that the film was a disaster. While it doesn't hit the same emotional highs as the TV show's best episodes, the movie does deliver some of the best action scenes in animated history.