The year is 1989 and Brent Maddock and S.S. Wilson finally have their screenplay. The two men – established purveyors of family-friendly science-fiction with 1986’s Short Circuit and 1987’s *batteries not included – have been kicking around a script based on Wilson’s idea of land sharks; during one desert hike, he suddenly became obsessed with the idea that he couldn’t leave the rock he stood on, and jotted that idea down for future development. A few years go by and Maddock and Wilson have put everything on paper and are determined to produce the film themselves. In a brief introduction to the shooting script for Tremors, Maddock wrote about his goals for Tremors: Our crafty little plan was to fashion a low- enough-budget idea that a studio would actually allow us to produce and, even less likely to happen, allow Ron Underwood, our old filmmaking partner from our educational film days, to direct (…) Inspired by 50s monster movies such as Them and Tarantula, we decided to put a twist in the old formula. What if the guys who usually get killed in the first reel (sacrificed to demonstrate the deadly threat of that film’s particular creature) were, instead, our leads? Despite its “low-enough-budget” premise, Tremors was something of a gamble for almost everyone involved in the project.