Random Trivia For This Title:
- Michael Gross began filming one day after shooting the last episode of [Family Ties].
- The "graboids" are very reminiscent of the giant worms in Dune. Both are giant worms, live underground, live in the desert, have large mouths on the end, and respond to vibrations on the surface. Also, both films have the characters escaping the worms by retreating to rocks where they can't get attacked.
- The license plate for Burt and Heather Gummer's vehicle reads, UZI 4U. The bumper sticker on their vehicle's right front bumper reads "Free Afghanistan".
- Originally, the monsters were supposed to be completely dry, not slimy. This was changed when it was remarked that the gloss paint effect made them look like they were covered in nail varnish.
- The original ending of the film was much different. Val and Earl head out to Bixbie and Val doesn't hook up with Rhonda. But it is implied. The two are looking for their lighter and realize that Rhonda still has it, they turn around and head back. This ending was shot, and tested for one audience, and was not well received. It is available in the documentary on the DVD.
- S.S. Wilson said that he got the idea for the film while he was working for the US Navy in the California desert. While resting on a rock, he imagined what it might be like if something underground kept him from getting off the rock.
- First film as an actress of country music singer Reba McEntire.
- The town set was built in about two months.
- According to promotional material from the Sci-Fi Channel, the official scientific name of the Graboid is "Caederus mexicana".
- Was originally given an "R" rating by the MPAA not for violence but for language. As an appeal, producers removed all utterances of the "f" word, with the exception of one - when Kevin Bacon shouts "**** you!" to the dead graboid.