Freddy vs. Jason Freddy vs. Jason Freddy vs. Jason (alternatively known as A Nightmare on Friday the 13th) is a 2003 American slasher film directed by Ronny Yu and written by Damian Shannon and Mark Swift. The film is a spin-off crossover between "A Nightmare on Elm Street" and "Friday the 13th" series, and pits Freddy Krueger and Jason Voorhees against each other in the eighth and eleventh installments in their respective series. The film is also the last in both "A Nightmare on Elm Street" and "Friday the 13th" series before they were both rebooted. In the film, Freddy (Robert Englund) has
Jason Voorhees copy of the Necronomicon Ex-Mortis, from the "Evil Dead" franchise, in the Voorhees home as a way to insinuate that Jason was actually a "Deadite", a type of demonic being from that series. Marcus stated the book's placement was intended to imply that Pamela Voorhees had used it to resurrect Jason after his childhood drowning, resulting in his supernatural abilities: "This is why Jason isn't Jason. He's Jason plus "The Evil Dead"... That, to me, is way more interesting as a mashup, and [Sam] Raimi loved it! It's not like I could tell New Line my plan to include "The