Modern cinema auditorium in Madrid , Spain. Horror films are designed to frighten and to invoke our hidden worst fears, often in a terrifying, surprising finale. movie mania Horror movies feature a variety of styles, from the earliest silent Nosferatu traditional, to in the present day’s CGI monsters (computer generated imagery monsters). They are typically mixed with science fiction when the menace or monster is related to a corruption of technology, or when Earth is threatened by aliens. The fantasy and supernatural film genres will not be often synonymous with the horror genre. There are various sub-genres of horror: slasher (о резне), teen terror, serial killers, satanic, Dracula, Frankenstein, and many others.