Friday the 13th etc.) of the year. Any month that starts on a Sunday contains a Friday the 13th, and there is at least one Friday the 13th in every calendar year. There can be as many as three Friday the 13ths in a single calendar year; either in February, March and November in a common year starting on Thursday (such as 2009, 2015 or 2026) (D), or January, April and July in a leap year starting on Sunday (such as 2012) (AG). The longest period that occurs without a Friday the 13th is 14 months, either from July to September the following
Friday the 13th (1980 film) Left", Cunningham wanted "Friday the 13th" to be more of a "roller-coaster ride." The original screenplay was tentatively titled "A Long Night at Camp Blood". While working on a redraft of the screenplay, Cunningham proposed the title "Friday the 13th", after which Miller began redeveloping. Cunningham rushed out to place an advertisement in "Variety" using the "Friday the 13th" title. Worried that someone else owned the rights to the title and wanting to avoid potential lawsuits, Cunningham thought it would be best to find out immediately. He commissioned a New York advertising agency to develop his concept of the "Friday