Most critics welcome Becoming Cousteau as an engaging, informative portrait, with praise concentrated on Garbus’s use of archival footage. The underwater images are a particular strength, conveying Cousteau’s attachment to the sea and the appeal of his filmmaking. His development from explorer and entertainer into environmental advocate gives the documentary its clearest emotional thread. The reviews generally find it an accessible introduction to his work, with several also valuing its attention to his flaws and regrets.
Reservations concern how far the film probes beneath its admiration. The Guardian wants closer scrutiny of Cousteau’s family life and influence, while The Playlist finds the treatment too respectful and insufficiently curious about his films. Vulture, by contrast, credits its willingness to acknowledge his shortcomings. The spread runs from enthusiasm to qualified approval rather than outright rejection: the archive earns broad praise, but the depth of the biography remains the dividing point.
