Visible crew/equipment: When the boy who wanted to be a wizard is being chased in his dream, they are in a dark tight corridor, and Freddy releases a chair with spikes on it to chase after the boy, but if you look you can clearly see the chair is being pulled with strings. (01:12:50)
Visible crew/equipment: When John Goodman and William Forsythe are digging out of prison, they emerge through a hole in the ground in the mud and rain. As they come through the hole, you can see the foam that makes up the top layer of mud that they dig through bend and wobble.
Visible crew/equipment: When Bette Midler and Shelly Long have just found out Michael Saunters is the bad guy, there is a helicopter looking for them and they're standing in the outdoor shower stall. Bette Midler says "They're the good guys" and they run out to try to get the helicopter's attention. Right after they run out of the stall, you can easily see one or two men in the stall - they're either holding the stall up against the wind of the helicopter or they're there for some other unexplainable reason.