The Giant Spider Invasion is a low-budget, 1975 film produced by Cinema Group 75 and directed by Bill Rebane. The film is about giant spiders that terrorize the town of Merrill, Wisconsin and the surrounding area. The Giant Spider Invasion was given a U.S. release in theaters in 1975, and was distributed by Group 1 Films. The impressive theatrical poster art was a throwback to the giant monster movies of the 1950s. The film was shown mainly in drive-in theaters. In 1997, the movie achieved additional exposure many years later, when it was featured on Mystery Science Theater 3000 episode 810. A VHS release of the film in the mid-1980s was distributed by Media Home Entertainment.

The film gives major roles to some actors who might have been considered "has-beens" at the time. The leads were Steve Brodie and Barbara Hale, with other roles going to Alan Hale, Jr. and Leslie Parrish. The film's final monster—and the film's largest "giant spider"—was constructed by covering a Volkswagen automobile with artificial fur. The back of the car was the front of the monster, and its red tail lights served as the monster's glowing eyes. A few other "giant spiders" were puppets representing spiders as large as dogs.

A black hole hits North Wisconsin and opens a door to other dimensions. Giant 15 meter spiders emerge from it, who have an appetite for human flesh! Dr. Jenny Langer and Dr. Vance from the NASA try to save the world. Written by Tom Zoerner