The document discusses the effectiveness of combining a horror film main product with ancillary texts like posters and a radio trailer. It describes how the main product aims to shock and frighten audiences using horror tropes. Ancillary texts were designed to hint at the genre without revealing spoilers, through techniques like embedding horror conventions and using a mysterious tagline. The poster uses horror elements like a threatening antagonist image. The radio trailer builds tension with scary music and dialogue while revealing just enough to intrigue listeners. Overall, the document argues that the ancillary texts complement the main horror film product well and help attract their targeted 15+ audience.