Continuity: When Tanner finds the fake dog head in the refrigerator, the refrigerator door is open and closed in alternate shots.
Continuity: The handwriting on Tanner's sign changes between shots.
Miscellaneous: When Tanner is warning the others to get out of the camper, he writes "Get out now". Richard is reading it aloud as "Get out of the camper now".
Factual errors: When Tanner goes to the airport, we hear jets taking off and see a sign revealing the place to be the Oxnard Airport in Ventura County. In real life this is a small airport with no facilities for passenger jet takeoff.