Sunny Boy (2023)

Arthur Guérin-Boëri is suffocating in his local swimming pool. His swim lane has become a dead end. The French athlete, multiple world champion in dynamic apnea, decides to leave the warmth of his pool and plunge into the frozen waters of a Finnish lake to set a new record. His journey then led him to immerse himself almost naked under a block of ice, in an attempt to set a new record in the icy waters of a Canadian lake. In his quest for legitimacy, which brings him close to death on several occasions, Arthur ends up finding himself.

Unfortunately the movie Sunny Boy is not yet available on HBO Max.