Happy Friday The 13th everyone! You know, that semi-holiday that we all kind of acknowledge. A day dedicated to bad luck that hits the calendar entirely by chance once or twice a year. Why do we care? Aside from the overly superstitious, who the hell knows?! However, there is one reason to celebrate this weird holiday: it shares a name with arguably the most iconic slasher movie series of the 1980s (aka the decade when masked cinematic serial killers ruled the screens). It’s never entirely been clear why the film franchise has this title. Well, at least not narratively. After Halloween was a massive hit, producer, writer, director and charlatan Sean Cunningham (Last House On The Left) knew that there was money to be made in ripping it off with a slasher movie named after that other creepy holiday. He made a poster before writing a script, quickly gathered the money, and then neither he nor anyone else involved in the franchise bothered to justify the title.