The trailer for the crime thriller Se7en uses various techniques to build tension, mystery, and intrigue. It employs a slow, tense musical score and serious voiceover to draw in viewers. Dark lighting, colors, and camera work are used to give the trailer an eerie feel that is conventional for the genre. The editing varies between longer, calm shots to build mystery, and faster, action-packed shots to create excitement. Close-ups of characters' faces convey emotions without revealing too much of the plot. Major stars like Morgan Freeman and Brad Pitt in the titles aim to attract a wide audience. Overall, these elements leave viewers wanting to learn more about the film's mysterious plot.