Continuity mistake: During the scenes where Detective Mike Gage is trying to track down Captain Howdy in his car via laptop and cell phone modem, he keeps looking at a certain driveway with a dog in it. Each time they cut back to the driveway, the dog is in a different place. The newspaper is also picked up and taken away by a man, and returns several times, each time in different spatial relation to the dog.
Continuity mistake: In the scene where Detective Mike Gage is in his car talking to Capt Howdy on his laptop via video, Capt Howdy challenges the detective to find him. Some distance away, a dog is heard barking. The detective determines that its source is the house that Capt Howdy is in and enters and starts searching for him. When he finally finds him it is in the basement. There is no way that the dog could have been heard from way down there.
Continuity mistake: In the Xibalba scene, they pass by the same raver with spiked hair twice. Also, the band's performance is not in sync with the music.