Other mistake: Tough beat cop Farley Wood in his spare time built a special electronic machine to feed his cat. He needs to take off for Miami at 3 PM. When his cat is eating before his departure though, the clock on the machine says it's "12 AM", which would be midnight, not noon.
Other mistake: When the coroner lifts the sheet to show the cops Jimmy Kong's body and shows them the dim mak bruise on his chest, you can see Jimmy breathing.
Other mistake: Barney asks the new bride to put Vinnie back on the phone, and she did. At that time she only knew Vinnie as Todd. (01:05:37)
Other mistake: Despite being Australian citizens neither McLeach nor Cody possess an Australian accent.
Other mistake: The hole that the guy got his arm torn off in was too small to fit into, despite the monster being on the other side. A few moments later, he's pulled in. If the opening was too small, the body would be crushed and blood would spray everywhere, but you see none.
Other mistake: Once Earl stops the CAT at Burt and Heather's house, Val is standing on its roof directly above Earl. Val is looking and talking straight at them. The graboids shake the CAT, Earl drives it forward quite a bit (take notice just how far), but he looks up to tell Burt to hurry but he and Val are still facing in the same direction. They should be facing backward due to the distance they had to move up. Also, you'll notice that Burt is right in line with the trailer as he throws most of his gear. (01:14:30 - 01:15:30)
Other mistake: If Burt honestly believes he only has days left to live, wouldn't he be wondering why he isn't displaying any symptoms of illness (coughing, fever, pain etc). Also why wasn't he prescribed any kind of medication by the doctor who gave him this prognosis. Kinda silly really.