The combination of the documentary and its ancillary texts is effective for three reasons: First, the ancillary texts of a newspaper advertisement and TV listings spread complement the documentary by promoting it to potential new audiences. Second, the design elements of the newspaper ad, such as its bold font and simple black-and-white design, are eye-catching and grab readers' attention. Third, audience feedback showed that 80% of people who saw one of the ancillary texts said they would then watch the documentary, demonstrating that the combination of materials is successful in promoting the documentary.