Continuity: The shape and size of the volcano is totally different between the moment when Nuclear Man enters it, to when it erupts. Submitted by Sacha

Continuity: When Lois and Superman are flying together, they turn green, specially Lois's arms and hands. Submitted by Sacha

Continuity: The smoke coming out of the volcano changes direction in a split second after nuclear Man enters the crater. Submitted by Sacha

Revealing: When Superman is wounded on the neck, and when the italian villagers are saved, the same male falsetto voice is used to add a (crappy and out-of-sync) "Oooh!" and "Aaaah!". Submitted by Sacha

Continuity: The debris on the bottom of the Statue of Liberty's base appears and disappears between shots. Submitted by Sacha

Continuity: During the Great Wall of China scene, a tree suddenly appears by the wall just when Superman is leaving. Submitted by Sacha

Continuity: When Superman falls straight and unconscious off the Statue of Liberty he's facing a 9 o'clock direction. In the next angle he is facing 5, then lands facing 7. Submitted by Sacha

Deliberate "mistake": The same front shot of Superman flying is used over and over and over again. Submitted by Sacha

Continuity: While the subway is running loose, Lois stares at something, an immediate POV reveals it's the bystanders on the platform. But this is all wrong, the train is inside a pitch black tunnel all the time. Submitted by Sacha

Continuity: During the subway sequence, the carriage in front of Lois's is empty, but when the train comes to a stop it's packed with people. Submitted by Sacha

Revealing: While the subway train is gone wild, there's a brief shot of bystanders on the platform. Then the train keeps going on for several seconds, and when it finally comes to a stop the actors are the same ones used previously. Submitted by Sacha

Continuity: When Superman stops the subway train, there's a black man with a moustache, red shirt and a gabardine suit in the first line. Then he manages to appear meters behind, despite the jam on the platform. Then Lois appears behind him. Then she magically disappears and he appears back on the front. Submitted by Sacha

Continuity: When Clark is about to leave the hotel, a man appears by the dark car on the right in less than half a second. Submitted by Sacha

Continuity: Before Clark steps down off the trolley, a group of people surrounded by suitcases are seen on the back, but disappear when the angle changes. Submitted by Sacha

Continuity: After nuclear Man crumples the cab's hood, there's another taxi behind starting to drive slowly towards the damaged cab. A frame later, a new angle shows that taxi repeating the previous movements but really fast. Submitted by Sacha

Continuity: When Lacy is about to enter the elevator, a light brown rug has appeared on the floor behind, which disappears in the next wide shots. Submitted by Sacha

Continuity: In the hotel, right before Lacy enters the elevator, the hall of the hotel is filled with plants, couches and people. A second later, while Clark is on the trolley, the hall is a vast, empty place for the trolley to wander around. Submitted by Sacha

Continuity: When Superman is out on the balcony with Lois, a tall, wide building is reflected on the glass behind, but when the angle changes to Superman's POV the building is gone, and now there's just a vast open space and a thin skyscraper. Submitted by Sacha

Continuity: When Luthor introduces Nuclear Man to Superman, a towel on a chair changes from ironed and flat to a big bundle in less than a second. Submitted by Sacha

Continuity: When Superman cools the huge river of lava, a bunch of fresh white and red carnations can be seen inches away. Perhaps they are an ultra-heat-proof breed? Submitted by Sacha