THGhost

Continuity mistake: Before Gordon lifts Tully against the wall, he grabs Tully by the shirt collar. But in the next shot his hand is around Tully's neck.

THGhost

Revealing mistake: The first time we see Thing running down the hallway at the start of the film, the bluescreen is visible at the top of the screen; where the wrist area begins.

THGhost

Continuity mistake: When Thing frightens Fester in bed, the candles that Fester is holding instantly disappear from his hand and his bedside table.

THGhost