Friday the 13th is a single film.
Friday the 13th is an American horror franchise that comprises twelve slasher films , a television show , novels , comic books , video games , and tie‑in merchandise , as of 2017 . Friday the 13th Part III is a 1982 American 3D slasher film directed by Steve Miner and the third installment in the Friday the 13th film series . When first released , the film was intended to end the series as a trilogy .