In “Nyad,” there are two feats of perseverance on display. First, there is the ceaseless determination of Diane Nyad (Annette Bening) to accomplish a marathon swim from Cuba to Florida across 103 miles of open, shark-infested waters. Then there is the mettle of Nyad's support team to tolerate the singularly self-absorbed and stubborn Nyad. Both, in the film, are an endurance sport.
“Nyad,” which opens in limited theaters Friday and streams Nov. 3 on Netflix, is in many ways a conventional sports drama, defined by long odds and personal triumph. But there is enough here to help the film, directed by the intrepid filmmakers Elizabeth Chai Vasarhelyi and Jimmy Chin, if not swim against the tide of sports-biopic convention then at least ride a swift current to the finish line.
