Goofs

Debbie's panties change from blue to white, back to blue and then white again before she goes into the tub.

At about 24:50, Debbie has bath soap on her as she runs down the stairs. A moment after the camera moves to Billy and back to Debbie, the soap suds are gone and her skin is dry. As she then hides behind Billy, is being chased around the table and eventually falls down, her skin is wet and the soap suds return in varying amounts.

At about 18:34, there is a box of Froot Loops on the breakfast table. Later in the scene, it's gone.

The day after they move into the house, Debbie says she's only had 15 minutes of sleep all night and can't face starting school on that amount of sleep. Later, Billy mentions starting school on Monday (within the same day).

At about 27:56, Debbie faints at the bottom of the stairs with her legs rolled towards her left side and noticeably positioning her left hand; when the camera cuts away for a moment and back to her, her legs are rolled towards her right side.

Zipper seen on back of the head of Creature from the Black Lagoon.

There are large hinge plates on the outside of the front door. Then the door opens inward disconnecting the hinge plates from the frame.