Truffaut worked on a treatment for the story with Claude Chabrol, but they dropped the idea when they could not agree on the story structure. Godard had read and liked the treatment and wanted to make the film. While working as a press agent at 20th Century Fox, Godard met producer Georges de Beauregard and told him that his latest film was not any good. De Beauregard hired Godard to work on the script for "Pêcheur d'Islande". After six weeks, Godard became bored with the script and instead suggested making "Breathless". Chabrol and Truffaut agreed to give Godard their treatment and wrote de Beauregard a letter from the Cannes Film Festival in May 1959 agreeing to work on the film if Godard directed it. Truffaut and Chabrol had recently became star directors, and their names secured financing for the film. Truffaut was credited as the original writer and Chabrol as the technical adviser. Chabrol later claimed that he only visited the set twice and Truffaut's biggest contribution was persuading Godard to cast Liliane David in a minor role. Fellow New Wave director Jacques Rivette appears in a cameo as the dead body of a man hit by a car in the street.