While "Bottle Rocket" is certainly best categorised as comedy this might mislead those expecting the typical composition of one-liners, facetious mocking and exaggerated situational comic of mainstream Hollywood productions.
Instead the humour derives from the quirky, yet lovable characters, their perspective on life and approach in dealing with the challenges of society.
The quiet matter-of-fact absurdity present throughout the film will evoke a constant smile rather than burst-out-laughter. This is typical of all Wilson/Anderson collaborations (Rushmore, The Royal Tenebaums) where strong characterisation enables the viewer to develop understanding and affection for the protagonists as the story slowly unravels. In "Bottle Rocket" this is supported by strong performances, especially that of Owen Wilson, who proves his actor potential in an atypical role.
Though not flawless, (there is a lack of narrative urgency at times), this movie leaves the viewer ultimately entertained and charmed.