The film deviates from actual events a few times, presumably for dramatic effect. First, the film implies that Ederle's performance at the Paris Olympics was a disappointment, with her winning a single Bronze Medal. She actually won two individual Bronzes, and Gold in the 4 x 100m Relay. She and her team-mates took part in the welcome home parade for the US team. Second, almost exactly a year passed between Ederle's first and second attempts to swim the English Channel, with her returning to New York between the two attempts. The film also omits the fact that, as a "warm-up" for her first attempt, Ederle swam 22 miles from Battery Park (NY) to Sandy Hook (NJ) in a time that wasn't beaten for 81 years.
One of the cast members - Peter Stoychev who plays 'English channel swimmer #1' is a Bulgarian swimmer who broke the world record for the fastest swim across the English Channel in 2007 and held it for five years between 2007 and 2012.
James Sullivan comes into Trudy's father's butcher shop to tell her father he has decided to send women swimmers to the Olympics. Women have been a part of the Olympic swim program since 1912 and American women have been going to the Olympics for swimming since 1920 where they brought home gold medals in all three events and swept the 100m and 300m freestyle events. 1924 was the first year the 100m backstroke and 200m breaststroke were competed by women. The US swept the 100m and 400m freestyle, earned gold and bronze in the backstroke, and silver in the breaststroke before winning the 400m free relay, a race they won every year until 1936 games.
The film was initially going to debut exclusively on Disney+, but later changed to a limited theatrical release on May 31, 2024, to tie-in with the Paris 2024 Olympics.