Logan's Run (1977)

Logan's Run - S1-E1

Revealing mistake: Logan and Jessica commandeer a hover car that floats above the ground, but in shots of the car moving, wheels of the prop hover car are seen.

Scott215

Logan's Run - S1-E1

Revealing mistake: The pyrotechnic charge to planted in the wall to show the impact/explosion of the Sandman's pistol is visible before the Sandman fires at Logan and Jessica.

Scott215

Stargate - S1-E14

Revealing mistake: The hover car's steering wheel does not move as Logan "steers" it - the only thing moving is his hand over the wheel as he pretends to steer it.

Scott215

Stargate - S1-E14

Revealing mistake: An alien shot by Logan falls against a solid wall and the wall flexes like canvas.

Scott215

Logan's Run - S1-E1

Revealing mistake: Francis runs into a long corridor that is meant to extend way back into the distance. However his reflection and shadow hitting it prove that it is just a painting of a corridor stuck to the wall. (00:11:00)

ComicBoy