The document discusses the codes and conventions of documentary websites and trailers. It outlines that documentary websites typically include links to the film trailer, information on how to watch or purchase the film, photos and colors that match the documentary's themes. The document also notes that documentary trailers usually begin with a voiceover, use archive footage to set the scene, include reviews and awards, end with the title to leave audiences wanting more, and use consistent music to match the emotional tone. Both websites and trailers aim to promote the documentary and draw in audiences through their visuals and limited revealing of information.