 One final bat survives the freezing temperatures and burrows out of the ground, only to be crushed by the car as the group drives away.Principal photography and filming mostly took place in Utah between May and July 1999, in the cities of Genola, Magna, American Fork, and Park City, despite the film's plot being set in Texas.The bats in the film were a combination of computer-generated imagery (CGI), Animatronics, and actual bats which were brought from Indonesia.