Shortly after the film's premiere on Netflix, former diver Francisco Ferreras sued Netflix for intentionally suggesting him being the murderer of his wife, Audrey Mestre. Ferreras and Mestre were a diver couple who used to perform free diving across the world. In 2002 during a free dive in the Dominican Republic, Mestre drowned while surfacing from underwater, as her surfacing device malfunctioned. Following her death, the media strongly suggested Ferreras to be the perpetrator, as he might have interfered the device in order to kill her. He was even arrested for questioning, but was later released. In No Limit, Mestre and Ferreras' story is loosely adapted into a drama between estranged couple Pascal Gautier and Roxane Aubrey. In the film, Pascal is an abusive husband of Roxane who is jealous of her successful career in free diving, something he is not perfect at. The film strongly suggests at the finale that he sabotaged Roxane's breathing device that causes her to drown underwater while surfacing, similar to the death of Audrey Mestre in real life. At the end of the film, an obituary dedicated to Mestre is shown.
Following the release of the film, Mestre's widower Ferreras filed a defamation lawsuit against Netflix for blaming him for Mestre's death, as the film claimed to be "inspired by true events". In response, director David M. Rosenthal said that the film was a work of fiction and had no similarities with real life whatsoever.