Hamster

Revealing mistake: When Adam, who should have no reflection, walks out of the door to go retrace his steps, he is really clearly reflected in the big glass panel in the door. Then after Barbara pulls Adam from the SandWorm land, they walk back into the house through the same doors, and are both reflected in the glass panels of the door. So much for ghosts... (00:08:50)

Hamster ★

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 ★

Revealing mistake: When Delia and Otho go upstairs, Delia takes her can of spray and writes the word "mauve" on one of the walls. The faded marks of mauve spray paint are quite evident on the wall as she sprays the word, which reveals that this was not the first take of the scene. (00:16:00)

Hamster ★