Revealing: When Beth is helping Martin out of Bartok's cocoon, you can see Martin wearing pants inside the cocoon. Surely he should be naked.

Revealing: In the scene where Martin Brundle has transformed into the fly he kills one of the guards by breaking his neck. After this he throws the body towards a door where another guard is standing - the body is a plastic dummy as it flies across the room with no effort at all and when the other guard behind the door checks the body you can see a plastic yellow face which is supposed to be the guard that was killed.

Visible crew/equipment: Martin Brundle (in fly form) manages to kill a guard by spewing acid vomit all over him. Right after this happens he roars and you can see what looks like a colander (probably used to increase the spread of the vomit) in his mouth.

Revealing: In a hallway scene, where the transformed Martin Brundle is throwing one of the scientists upstairs towards a guard, you can see the wires the scientist is hanging on.