Continuity mistake: When Charles and Delia are sitting out on the white terrace, Charles holds a glass with brown coloured drink in it which is three-quaters of the way full, and Delia's glass is half full. When Otho walks onto the terrace, Charles's drink is clear-coloured and the glass is filled right to the top, and Delia's glass is now three-quaters of the way full. (01:01:35)Hamster
Continuity mistake: During the scene where the Deitz family and their guests get possessed to sing and dance along to "Day-O," the positions of the black and white napkins, the wine glasses, the cutlery, the wine bottles in the ice-buckets, etc., change many times throughout this completely hilarious scene. (00:50:20)Hamster
Continuity mistake: The photos Charles is holding of the Maitlands in sheets are 35mm photos based on the shape of the photo. The pictures Lydia took of them were Polaroid which are square and not as detailed or sharp as the other pictures, much less the same shape even if they were blown up.jerimiah
Revealing mistake: When we see that Barbara and Adam are hanging out of the window in order to hide from the Deitz's, it cuts to Beetlejuice yelling "Oh boy. You guys are really a couple of spooksters." In this shot of him shouting, he does not have any white makeup applied to him, nor does he have any of the green patches that run down his neck. In this shot he does not look his usual "dead" state, but looks normal. They obviously forgot to make him look "dead." (00:56:40)Hamster
Continuity mistake: In the Day O scene. Lydia is sitting at the table next to her father. When the possession takes place, Lydia is not longer at the table and in a brief moment is seen in the corner hiding, laughing behind her chair. The camera closes in on the song and dance, and when pulls it back Lydia and her chair are gone and the corner is empty.
Visible crew/equipment: There is a unknown 3rd person helping Charles and Otho remove the model from the attic. You can see him briefly just as the scene ends on the left side of the screen moving the front portion of the model, closest to the camera, between us and Charles. Charles and Otho would be hard put to move that entire model by themselves. Otho says it is sectional, but they still seem to move the entire model in one piece.
Revealing mistake: At the start, after the car veers away from hitting the dog and comes to rest teetering on the edge of the bridge, you can see the quick release wire cable that was used to secure the car to the bridge. It's also very visible when the car is sinking into the water. (00:07:50)
Continuity mistake: When the wedding clothes are laid out for the seance, there are no pants/trousers in place for Adam, but when he materialises he has them on.
Continuity mistake: When Charles is looking out of the window, he pushes one slat of the blinds upwards, and then bird watches with his binoculars. When Lydia comes in and makes him jumps, he turns around, and this particular slat falls back downwards, into place. But in the very next shot this same slat is pushed in an upwards position again. When he sits back down again as Lydia leaves, the slat is back down again. (00:27:35)Hamster