The scriptwriters deliberately adapted the story to with deliberate vagueness. The adaptation came as a result of some questions that needed to be answered, how long did the flood last? The biblical account is not very clear on whether the floods lasted 40 days and 40 nights or 150 days. In the movie version the floods lasts an undetermined length. The bible narrative notes that Noah was 600 years when the floods came and his sons were almost 100 years old. There was no way the scriptwriter would have found a cast that would look 600 hundred years old and the scriptwriter probably does not have an idea of how a 600 years old look
