Sacha

Superman IV: The Quest for Peace mistake picture

Continuity mistake: When Nuclear Man arrives in Metropolis, the cab driver beside the police car is a middle-aged man with grey hair. In the very next shot, he suddenly becomes a young man with dark hair and a toupee.

Sacha

Superman IV: The Quest for Peace mistake picture

Revealing mistake: When Nuclear Man lands in Metropolis before destroying everything, watch the truck and cab on the left and you'll realise that they are a painting. Not a realistic painting, but a cheap, unfinished one.

Sacha

Superman IV: The Quest for Peace mistake picture

Continuity mistake: When Nuclear Man steals the Statue of Liberty, its pedestal looks normal. When Superman puts it back in place, the pedestal is missing a huge chunk (surely because of some FX going wrong). In further shots, it's fixed.

Sacha

Superman IV: The Quest for Peace mistake picture

Revealing mistake: When Superman and Nuclear Man fall down the building, their capes remain stuck to their backs, defying the laws of gravity, and thus revealing that the scene was shot with them standing up and then turning the camera around.

Sacha

Superman IV: The Quest for Peace mistake picture

Continuity mistake: When Moscow's Red Square scene begins, the tanks and soldiers parade in front of the authorities (a combination of matte painting and a real set). When Superman arrives, a second tree has appeared next to the one on the left. On the right side, an unfinished painting has replaced the previous huge wall, trees, and decor. (International theatrical, TV, and LaserDisc releases).

Sacha

Superman IV: The Quest for Peace mistake picture

Visible crew/equipment: When Superman saves the day in Moscow, the edge of the set and the backlot behind can be seen on the sides of the wall where the politicians stand. One can even see the set's scaffolding on the right. (International theatrical, TV and LaserDisc releases.)

Sacha

Superman IV: The Quest for Peace mistake picture

Revealing mistake: When Clark receives Lex's signal, he rushes out of the room where Lois and Lacy are. First, he crouches behind a couch and disappears. Then the camera pans to the right, and now he's Superman. Problem is, one can still see Clark's stand-in crouching behind the couch, revealing how the trick was achieved.

Sacha

Superman IV: The Quest for Peace mistake picture

Continuity mistake: When Superman flies to save the girl inside the tornado and the family exits the basement there's a truck by the entrance door filled with hay. Half a second later the truck is gone and reappears behind the family, but now it's empty. (Laserdisc and international extended editions).

Sacha

Superman IV: The Quest for Peace mistake picture

Revealing mistake: During the tornado, when the little girl cries by the window check the lower corner of the window on the right and you'll see the white string moving the window. (Laserdisc and international extended editions).

Sacha

Superman IV: The Quest for Peace mistake picture

Continuity mistake: While the lava flows on the Italian village, a wooden cart with hay on the left suddenly becomes a red car.

Sacha

Superman IV: The Quest for Peace mistake picture

Continuity mistake: Before lava covers the Italian village, furniture under the two arches on the right, as well as a vase, cart wheel and table on the left disappear between shots.

Sacha

Superman IV: The Quest for Peace mistake picture

Other mistake: When Lois and Superman fly together, the part where they fly over some horses is the very same shot as when they fly over the Golden Gate for the second time.

Sacha