While a vampire, Ralphie is in his pyjamas although he died in his regular clothing.
When Straker drives to the police station with his two suits, the rear side window on the driver's side in rolled down. When he arrives at his shop across from the police station, that window is rolled up.
The pry bar that Ned and Mike drop on the floor at the Marsten house changes positions between shots.
While driving to the antique shop, Straker drives by Crockett's realty office where a memorial wreath is on the door. Moments later we see the realty office again and there is no wreath.
Bonnie tells Larry that Cully will be in Portland before Cully is actually hired to go to Portland.
The sign for the Harmony Hill Cemetery is misspelled "Harmony Hill Cemetary."
Straker is seen carrying a bundle from his car to the basement of the Marsten house, which is then unwrapped to reveal Ralphie Glick, but the bundle Straker carried was much too small to contain an 11- or 12-year-old boy.
When Danny Glick prepares to turn Mike into a vampire, You can see actor Geoffrey Lewis lean his head slightly to his right to assist Brad Savage so he can bite him.
During the complete 184-min version, you can see Ned and Mike pushing the supposedly heavy and cumbersome crate towards the lorry - unfortunately it snags on the floor on the way, tilting upwards in a manner characteristic of light, empty crates.
In the hospital scene when Ralphie comes to vampirize his brother Danny, Danny's I.V. drip falls to the floor and smashes, but the audio and picture are out of sync.
When Straker is driving to his office to drop the suits to constable's office, the camera is reflected in the co-pilot side when the car is passing-by on the street.
Also after he park his car, the camera is again reflected in the pilot's door when he open it.
During Ralphie's second visit to Danny after being vampirized, Danny opens the hospital windows and one of the crew members is reflected in the glass.
At the Marsten house when Straker is taking his suits to constable's office, a camera & crew are reflected in the rear door, when Straker open it.
As Cully and Larry enter the living room, a crew member and a boom mic are reflected in the mirror.
During the dinner at the Norton house, a boom microphone is visible at top of screen over the dinner table.
As Ben and Susan leave the Norton House after dinner, the shadow of a boom mic is visible on the porch roof post.
Straker tells Crockett to have Mike and Ned padlock all the doors on the Marsten house after they deliver the "sideboard", and to leave all the keys to the locks on the basement table. Crockett never stops to think to ask Straker how Straker would have gained entry to the house had this been done.
One of the characters talks about going to Bangor but mispronounces it as BANGER when it should be BANG-GORE. Later on another character says it correctly.