Continuity: When El Blanco is outside Burt's home, and leaves, there isn't any hole in the ground after him. Later, in the movie, when El Blanco gets underneath the earth, he leaves a big hole after him. Why wasn't it like that the first time?

Continuity: After the foursome spend the night on the rocks, their shirts are buttoned up tight, but while Burt retreaves his walkie-talkie and guns out of his truck, both Miguel and Jody's shirts are unbuttoned.

Continuity: When Burt is at the gas station, he makes change with the box top of the pump. he closes the box. Jack approaches to meet him and the shot cuts to Jack and the rock is all ready on top of the box. we cut back to Burt and he is placing the rock on top of the box.

Other: In the scene where Burt is looking at the comic books, the name Shreikers is misspelled. It should be spelled Shriekers.

Deliberate "mistake": During the scene where Jack is talking to Jodi about the 'complimentary ice', Jodi has an Apple MacIntosh laptop on the desk. The logo on the back of the laptop does not have the 'leaf' on the top of the apple. this was done to avoid copyright issues.

Continuity: When Burt's truck goes off the cliff and they go to the hill to find Miguel and his truck side-by-side. The truck now has different rims than before.

Audio problem: Every time a car takes off on dust or sand the tires screech.

Audio problem: When the guy in Jack's truck says "You better pay for that camera", his mouth doesn't match his words.

Continuity: In the first Tremors when driving into Perfection the city limits sign list the elevation as 2135 feet. In this film the same sign shows the elevation at 2835 feet.

Continuity: After Jack digs down to the graboid he throws the shovel down, the next shot the shovel has moved next to the chainsaw