Screenwriter Todd Farmer recently spoke to The Av Club about the cult classic and recalled that Cronenberg first came on board because his longtime collaborator Jim Isaac did the opening sequence, which takes place inside Jason’s brain.
“That was all Jimmy. It wasn’t in the script. I’m glad he did it,” Farmer said. “And all of that wet gooeyness is because Jim Isaac was David Cronenberg’s special effects guy and Cronenberg was known for moist gore.