Superman IV: The Quest for Peace (1987)

Continuity mistake: Lois opens Clarks's door and stands in the shadows talking to him. The amount of light by the door swaps from gloomy to totally lit depending on the angle, with no order whatsoever.

Sacha

Continuity mistake: Superman holds the tip of the mountain with his body straight, as if standing on air, yet a frame later his body is laying along as when he flies.

Sacha

Continuity mistake: When Nuclear Man first shows up, a sculpture to his left appears and disappears between shots.

Sacha

Plot hole: Nuclear Man sends laser beams pointing his arms and destroys everything around, yet when inside the Daily Planet, he sends beams to the elevator but absolutely nothing happens.

Sacha

Continuity mistake: Amount of rock from the cut-out mountain standing out from crater differs between the first and second shot.

Sacha

Revealing mistake: When the first cab is attacked by Nuclear Man, watch underneath and you'll notice that the wheels don't touch the ground, revealing it's a prop.

Sacha

Continuity mistake: Lex greets Nuclear Man extending his hand parallel to the floor. A frame later the hand is tilted sideways, perpendicular to the floor.

Sacha

Revealing mistake: When Nuclear Man steals the Statue of Liberty, there's a very obvious blur around the retouched image where the real statue has been painted over to simulate it's gone.

Sacha

Continuity mistake: A US flag appears and disappears from Lacy's table when she flirts with Clark.

Sacha

Continuity mistake: When Superman is locked inside a block of ice, the first shots shows it's semi-transparent, but a frame later it's opaque.

Sacha

Revealing mistake: When the police cars drive backwards, before they crash and burst, the scene is a repetition of a previous one but reversed.

Sacha

Continuity mistake: Nuclear Man crashes through Lacy's ceiling to abduct her, producing a perfect squared hole, with lamps on each side. When he exits, the hole is smaller and with an irregular shape, plus the lamps are further apart than before.

Sacha

Continuity mistake: When the Statue of Liberty plummets, the building behind changes style, and also swaps from bronze to concrete.

Sacha

Continuity mistake: When Luthor steals the strand of hair, Lenny stands inches away from him. A frame later he is in a different position 3 meters away.

Sacha

Visible crew/equipment: During the city attack, after Nuclear attacks a bus, a boom mic is reflected on a cab's windshield. (01:10:25)

Sacha

Continuity mistake: When Clark sees Lex's building, there's no terrace anywhere, but when he arrives, a huge, wide terrace with an umbrella and plants around suddenly appears.

Sacha

Continuity mistake: Lois visits sick Clark and opens the door wide. When the angle changes the opening is much narrower.

Sacha

Continuity mistake: When Lacy acts sexy in her office, Clark is about to enter through her door, but when the angle changes he's 15 meters behind walking towards the door again.

Sacha

Continuity mistake: After Nuclear brakes the cab's hood, the opening width of the trunk changes between one frame and another in between angles for no reason whatsoever.

Sacha

Continuity mistake: When Clark is in Lacy's kitchen watching Lex's message, the billboard underneath changes between shots.

Sacha