Visible crew/equipment: When Superman and the super villain are fighting on the moon, when Superman flies in and lands at the beginning of the fight, you can see the cables that are suspending him.

Factual error: The Sun Man takes the publisher of the newspaper out into space. Humans cannot breathe in outer space. Even if they could, wouldn't she burn up in re-entry? It can't be Superman's powers are transferred to someone he's touching, otherwise in the second film he could never have crushed General Zod's hand...

Continuity: When Nuclear Man arrives on Earth, he enters a shady place which makes him loose his power and cools his body, producing some frozen-like smoke. The next two times that he enters a dark place (inside the elevator and in space) he doesn't produce the smoke. FX budget problems here?

Continuity: Nuclear Man dents the floor with his footsteps, but in a wider angle the floor is intact.

Revealing: When Superman saves the people that Nuclear Man throws up into the air, as they lower you can see the support wires holding them up.

Continuity: Two firemen are seen away from their truck, but when the angle changes six firemen have appeared seemingly from nowhere.

Continuity: When ever there is a shot of Superman flying taken from directly in front of him, on a bluescreen (Watch out for the oh-so-visible black outline and loss of colour), it's always the exact same shot. Obviously the producers could only get one day with the blue screen, then.

Continuity: When Lacy is in outer space grabbed by Nuclear Man, she slides down dramatically and grabs on his wrist. Half a second later, the sliding effect is gone and she is now floating relaxed, grabbing the upper part of his arm.

Continuity: When the truck is carrying the missile, the officers parading in front of it pass by the same place twice.

Continuity: After the two police cars are sent backwards, a third one that was parked behind, suddenly appears aligned with the other two.

Continuity: When Superman leaves Luthor in the quarry, he lands several feet to the right of the cop. In the close-up they are almost close to each other.

Continuity: In the barn, Superman puts a glowing crystal inside a pocket. A frame later it disappears.

Continuity: When Superman is walking with the kid towards the UN, they pass by a fire hydrant. In the immediate wide angle of the place the hydrant is gone, but reappears in the following shot a couple meters ahead of Superman.

Continuity: When Superman lands Lex on the quarry, the standing position of the prisoner behind differs between shots.

Continuity: Before Superman enters the UN hall, the amount of people by the staircase changes between shots.

Continuity: When Lois is in the subway carriage crying for help, she places her right hand on the rail above. A frame later the hand is by her waist.

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

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

Continuity: Behind where Nuclear Man lands there's no school bus on the wide shot, which is a matte painting, but a frame later one appears and stays there for the rest of the scene.

Continuity: When nuclear Man bursts the cab's hood, the radiator explodes and vanishes. A second later it's back on.