The document discusses how the combination of a film's main product (trailer) and ancillary texts (poster and magazine cover) can be effectively integrated. It provides examples from a student's film project of how key elements like font, images, and color were carried over from the teaser trailer to the poster and magazine cover designs to create cohesion across the marketing materials. Elements like an iconic image of the main character and a distinctive handwritten font used in the trailer are then featured prominently in the ancillary texts to tie them back to the central product.