The trailer for the supernatural horror film Sinister uses various techniques to establish its genre and build tension. It reveals that a writer moves his family into a home where a horrific crime occurred. As he researches the crime, he discovers disturbing home videos in the attic that endanger his family. The trailer employs an ominous voiceover, unsettling music, and jump cuts between disturbing images to create an atmosphere of growing fear and suspense around the threat posed.