In 1977, Director Richard Donner was hired to direct Superman: The Movie and Superman II. At the time the script drafts combined were more than four hundred pages long (an impossible length to shoot) and Donner felt they were much too campy as well. He brought Mankiewicz aboard to do a complete overhaul in terms of length, dialogue and tone. Mankiewicz stayed on the production for more than a year, assisting Donner in other departments as well. Donner gave Mankiewicz a separate credit in the main title sequence: "Creative Consultant." The Writer’s Guild strenuously objected on two grounds; first, that the traditional script arbitration process was being bypassed and second, that Mankiewicz’s credit came after the original screenwriters and not before them, implying that his contribution was more important. The dispute went to a legal hearing. Mankiewicz won. His credit remained where it was on Superman: The Movie, but he agreed to have it come just before the listed screenwriters on Superman II.