Most critics welcome Cover-Up as a compelling portrait of Seymour Hersh and a forceful reminder of investigative journalism’s value. Praise centres on his tenacity, vivid presence and willingness to challenge powerful institutions, with the account of his My Lai reporting drawing particular admiration. The reviews also credit the filmmakers’ use of archival footage and reporting materials with showing how investigations develop and how concealment recurs across decades of American wrongdoing.
Reservations concern how thoroughly the film questions its subject, alongside an occasionally overwhelming pace and less assured later sections. The AV Club finds the tensions between Hersh and the filmmakers insufficiently explored, while The Wrap values the moments when Poitras challenges his blind spots but sees competing directorial perspectives. The spread is chiefly between enthusiasm and qualified approval, not outright rejection; the two entries counted as mixed have no accessible verdict to clarify their reservations.
