A horror film franchise is a series of related movies that share common themes, characters, or storylines, often centered around supernatural or terrifying elements. These franchises typically build a loyal fan base and can include sequels, prequels, and spin-offs. Popular examples include the Halloween series and the Friday the 13th films, which have become iconic in the horror genre. Franchises often expand their narratives through various media, including television shows, comic books, and merchandise. They may also explore different aspects of horror, such as psychological terror or slasher elements, appealing to a wide range of audiences. The success of a franchise can lead to remakes and reboots, further extending its legacy.