Hepburn reunited with her "Sabrina" co-star William Holden in "Paris When It Sizzles" (1964), a screwball comedy in which she played the young assistant of a Hollywood screenwriter, who aids his writer's block by acting out his fantasies of possible plots. Its production was troubled by several problems. Holden unsuccessfully tried to rekindle a romance with the now-married Hepburn, and his alcoholism was beginning to affect his work. After principal photography began, she demanded the dismissal of cinematographer Claude Renoir after seeing what she felt were unflattering dailies. Superstitious, she also insisted on dressing room 55 because that was her lucky number and required that Hubert de Givenchy, her long-time designer, be given a credit in the film for her perfume. Dubbed "marshmallow-weight hokum" by "Variety" upon its release in April, the film was "uniformly panned" but critics were kinder to Hepburn's performance, describing her as "a refreshingly individual creature in an era of the exaggerated curve".