Goofs

When Jennifer is lighting her tongue with the lighter, her hair is in front of her ear in distant shots, but then behind her ear in the close-up.

The first time Needy and Chip walk away from her locker, the shoulder straps of Chip's backpack jump from being on one shoulder to then being on two, then back to one, then to two again.

In the Melody Lane bar, Jennifer returns with a tray of the two "9-11" drinks. She says, "Tower 1 isn't full enough." The camera cuts away and when it cuts back "Tower 1" is more full (blue layer). The camera cuts away again, and when cutting back, "Tower 1" is back to it's previous lower level.

Just after the fire in Needy's kitchen, Jennifer appears in profile, with a ghastly, toothy smile. In the next full-face shot, her mouth is closed, and the ghastly smile appears slowly.

In the beginning shots of the movie, it's shown that Needy has a massive scar on her back that's just barely healed. Throughout the entire movie, she sustains no injury that could have caused that kind of scar.

Needy does research on the occult and determines that Jennifer is a succubus, a demon which feeds on flesh. A succubus is believed to be a female demon that has intercourse with sleeping men, and does not, in fact, eat flesh.

The subhead of the newspaper article "Local band Low Shoulder sign to major" is "Members site local support as key to success." The second word of the subhead should be spelled "cite."

Fire officials would not investigate the scene of a structural fire while it is still heavily smoldering.

The parents would not have been informed of their son's death before his body was removed by ambulance.

Nikolai says, as the band is about to perform the ritual: "We got a waxing moon. Perfection." Then we get cut to a shot of a moon that's visibly shrinking, while waxing means growing moon.

The moon isn't 'visibly shrinking.' It is a crescent moon, which is less than half. The moon can be a waning crescent, which means it is getting smaller, night after night, or a waxing crescent, which means it is getting fuller, night after night.

During the radio interview with the band Low Shoulder, they refer to the town as Devil's Lake instead of Devil's Kettle.

After Melody Lane catches on fire and Needy and Jennifer are outside kneeling in the parking lot it is obvious that there are no lenses in Needy's glasses as there is no reflection of the fire.

When Jennifer is in the forest with Jonas, as she unzips her jacket, it can clearly be seen that she has no belly button, though it is shown in other scenes.

The dartboard in Chip's bedroom is hung far too low, below waist level.

When Nikolai is about to stab Jennifer, there is a distant shot where he says, "We have to make a really good impression on him," Jennifer isn't crying and her mouth is closed.