The combination of the main film product and two ancillary texts (a film poster and radio trailer) was effective in promoting the film. The film poster represented the mysterious atmosphere of the film through the image of a hooded character and tagline. Research was conducted into successful thriller posters to guide the design. Similarly, the radio trailer included sound bites and music from the film to directly reflect the main product. Both ancillary texts linked well to the film and represented it accurately according to research into common effective promotional techniques.