Goofs

Cecily wears a ring on the fourth finger of her right hand and none on her left, yet when she picks up the newspaper clipping and takes the knife from Finn in Parker's room, there is a ring on the middle finger of her left hand.

After the opening attack, a title card displays 29.5 days later. An attack occurs that night, exactly 30 days after the previous attack. Werewolves attack on the full moon which is on a 28 day cycle. The title card should have read 27.5 days later. The single flaw in an otherwise perfectly plausible film.

When inside Emerson Flint's house there is a stuffed grizzly bear as one of his hunting trophies. Emerson would have had to killed the bear and brought it from somewhere else since grizzly bear are not native to Vermont and would not likely be something a man who has lived in the area off grid for years would have. A black bear would be more accurate since they are native to the state of Vermont.

The inspection sticker on Finn's car is in the wrong place. The sticker is on the lower part of the windshield in the driver's side. The movie is supposed to take place in Vermont so the sticker should be just below the rear view mirror.

Parker re-enters the hotel wearing night visions goggles with a normal torch mounted on his crossbow. That torch would ruin his night vision.

Trish Anderton is holding the coil style leash after Cha-Che is gone. That coil type of leash, when broken, coils all the way inside the handle. There would be no exposed leash for Trish to hang onto.

When Mrs. Anderson's dog is taken outside the dog door, she grabs a flashlight and aims it at the door, but in several shots the light is clearly not that of a flashlight but a stage light. There is no circular illumination as would come from a flashlight.

It's mentioned (and shown) all of the generators around town were vandalized to the point they would no longer work, rendering the houses and buildings without power. However, toward the end, the electricity comes back on despite the fact no repairs took place.

It's mentioned (and shown) all of the generators around town where vandalized to the point they would no longer work, rendering the houses and buildings without power. However, toward the end, the electricity comes back on despite the fact no repairs took place.

The werewolf should easily be able to smell Finn as he was bleeding heavily.

Shooting the pipeline fire would have caused an explosion which killed everybody.

Finn has a bad chest wound, he'd be in no condition to fight a person, let alone a werewolf.

At the inn, Finn collects everyone's gun, bundles them up and locks them away. Later, when several people walk out, no one asks for their gun to be returned.

Cecily mispronounces the name of one of the towns. The town of Townshend is pronounced without the "sh". Townsend rather than Townshend.