Common year starting on Friday has only one Friday the 13th; The only Friday the 13th in this common year occurs in August. Leap years starting on Thursday share this characteristic, but also have another one in February. This is the only year type where the "n"th "Doomsday" (this year Sunday) is not in ISO week "n"; it is in ISO week "n"-1. In the (currently used) Gregorian calendar, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-three common years per cycle or exactly 10.75% start on a Friday. The 28-year sub-cycle does only span across century
Friday the 13th (1980 film) King, who recounted the making of the film to fans. As of 2018, "Friday the 13th" has spawned ten sequels, including a crossover film with "A Nightmare on Elm Street" villain Freddy Krueger. "Friday the 13th Part 2" (1981) introduced Jason Voorhees, the son of Mrs. Voorhees, as the primary antagonist, which would continue for the remaining sequels (with exception of the fifth movie) and related works. Most of the sequels were filmed on larger budgets than the original. For comparison, "Friday the 13th" had a budget of $550,000, while the first sequel was given a budget of $1.25 million.