The movie: Friday the 13th (1980)

While screenwriter Victor Miller was busy penning the script to Jason Voorhees' debut under the title A Long Night at Camp Blood, director Sean S. Cunningham was testing out the reaction to his preferred—and much simpler—idea: Friday the 13th. Before there was even a story, there was a logo, a promise ("The most terrifying film ever made!") and this advertisement in Variety. Ten sequels, one remake, a television series and countless comic books later, the title is a brand unto itself.