Arnold Schwarzenegger was given an English subtitled VHS of the film, which had screened at the American Film Market, by his then brother-in-law Robert Shriver. Schwarzenegger saw huge potential in the premise and passed the tape along to James Cameron, suggesting they make a remake together. Cameron agreed and bought the rights for a symbolic one dollar payment, along with profit participation for Claude Zidi, and thus went ahead to make True Lies (1994).
In 2000, Lucien Lambert sued co-writer/director Claude Zidi along with James Cameron, writer, producer and director of the film's American remake True Lies (1994), on the basis that they plagiarized his 1981 script "Émilie". Lambert lost his case in 2001 when it was ruled that he couldn't prove his script pre-dated Zidi's film. He however appealed and during the appeal admitted that he had sold the adaptation rights to filmmaker André Farwagi, who had turned it into Tous mes maris (1992), and appeared at the trial as a witness. With this new evidence, Lambert won his appeal in 2004. Cameron was found not liable as it was deemed he had acted in good faith upon purchasing the remake rights, while Zidi was condemned to pay Lambert an undisclosed portion of the $15 million he had made from profit participation on True Lies, covering both his and Cameron's share.