Trailers are designed to create interest in a film without revealing too much of the plot. They often begin with the production company logo and end with the film title and release date. Scenes shown may not be in the actual sequence or may omit key details. Text on screen and the names of stars are used to indicate what type of film it is and who is in it. Music and voiceovers aim to draw the audience in without fully explaining the narrative. Later trailers provide more information about characters and the plot to further promote and advertise the film.