While in the United States for the 1966 premiere of his film "Blowup", which had been a surprising box-office hit, Antonioni saw a short newspaper article about a young man who had stolen an aircraft and was killed when he tried to return it in Phoenix, Arizona. Antonioni took this as a thread, with which he could tie together the plot of his next film. After writing many drafts, he hired playwright Sam Shepard to write the script. Shepard, Antonioni, Italian filmmaker Franco Rossetti, Antonioni's frequent collaborator screenwriter Tonino Guerra and Clare Peploe (later to become the wife of Bernardo Bertolucci), worked on the screenplay.