The document discusses the codes and conventions of teaser trailers, posters, and magazine covers. It provides details on how teaser trailers are typically short, establish the genre and actors without revealing much of the plot. It also notes conventions for posters, such as being eye-catching and including the title, tagline, and actors. The document then discusses how the group's teaser trailer, poster, and magazine cover adhered to conventions for those mediums while also providing some unique elements.