The document discusses how media products can use, develop, or challenge conventions and codes of existing media genres. It notes that while following conventions gives audiences familiar expectations, being too predictable loses their interest. The key is meeting expectations while also innovating to keep audiences engaged. The response describes how its horror film trailer and promotional materials use conventions like setting and props to identify the genre, but aim to challenge expectations somewhat by having a story about teenage girls rather than a family. It also discusses how conventions were followed for the poster, magazine cover, and elements of the trailer while striving to maintain some uniqueness.