Thriller trailers aim to keep audiences on the edge of their seats through suspense and anticipation of danger. They often feature guns, cars, and low-key lighting to set a dark, mysterious atmosphere. Teen thriller subgenres include action, crime, psychological, science fiction, and religious thrillers that incorporate themes of drama, mystery, and the mind. Trailers use techniques like close-ups, dramatic music, and low-key back lighting to convey a character's emotions and build suspense.